diff --git a/seqs/aria2.sh b/seqs/aria2.sh
index 1013a1f..8d24c9d 100755
--- a/seqs/aria2.sh
+++ b/seqs/aria2.sh
@@ -6,7 +6,7 @@ toolUser=aria2
 
 # Get script working directory
 # (when called from a different directory)
-WDIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >>/dev/null 2>&1 && pwd)"
+WDIR="$(cd "$(dirname -- "${BASH_SOURCE[0]}")" >>/dev/null 2>&1 && pwd)"
 CONFIG=0
 SCRIPT_NAME=$(basename -- $0)
 SCRIPT_NAME=${SCRIPT_NAME%%.*}
@@ -15,7 +15,7 @@ CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
 aptOpt=
 
-step_config() {
+seq_config() {
   #echo "Called once before executing steps."
   ## e.g. to source a config file manually:
   #. "$CONFIG_FILE"
@@ -27,14 +27,14 @@ step_config() {
     CONFIG=1
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return 1
+    dry || return 1
   fi
-  [ $QUIET -ne 0 ] && aptOpt="-y"
+  quiet && aptOpt="-y"
   return 0
 }
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install $toolDeps $aptOpt
@@ -54,11 +54,11 @@ ariaConfLoc="/etc/aria2/aria2.conf"
 
 
 step_3_info() { echo "Create $toolName service"; }
-step_3_alias() { ALIAS="service"; }
+step_3_alias() { echo "service"; }
 step_3() {
   addConf -s "$ariaService" "$ariaServiceLoc"
   exe systemctl daemon-reload
-  echoseq " [I] Serive not started or enabled"
+  info "Service not started or enabled"
 }
 ariaServiceLoc="/etc/systemd/system/aria2.service"
 ariaService="[Unit]
@@ -76,10 +76,11 @@ Restart=on-failure
 WantedBy=multi-user.target"
 
 step_10_info() { echo "Add ufw rule for rpc port 6800"; }
-step_10_alias() { ALIAS="ufw"; }
+step_10_alias() { echo "ufw"; }
 step_10() {
   exe ufw allow in on eth0 to any port 6800 proto tcp comment "Aria2 rpc"
 }
 
-VERSION_SEQREV=12
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
+
diff --git a/seqs/backup.sh b/seqs/backup.sh
index 3919270..b4c428b 100755
--- a/seqs/backup.sh
+++ b/seqs/backup.sh
@@ -11,17 +11,17 @@ CONFIG=0
 CONFIG_FILE_NAME="${toolName}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig -t "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
   else
-    echoerr " [E] Check output for errors"
+    error -e "Check output for errors"
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
 
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
   return 0
 }
 
@@ -31,12 +31,12 @@ step_1_info() {
   echoinfo "Essential excludes are provided in the configuration template."
   echoinfo "($CONFIG_FILE_TEMPLATE)"
 }
-step_1_alias() { ALIAS="buroot"; }
+step_1_alias() { echo "buroot"; }
 step_1() {
   local buTarget="/backup"
   if [ $CONFIG -eq 0 ] ; then
-    echoerr " [E] Cannot backup root without properly configured excludes"
-    echoerr "     (expected config: $SEQ_CONFIG_HOME/$CONFIG_FILE_NAME)"
+    error -e "Cannot backup root without properly configured excludes"
+    error -e "     (expected config: $SEQ_CONFIG_HOME/$CONFIG_FILE_NAME)"
   else
     buTarget="$BACKUP_TARGET"
   fi
@@ -81,7 +81,7 @@ step_3_info() {
   echoinfo "e.g. to exclude $dir/a:"
   echoinfo " $0 budir $dir $tar /a"
 }
-step_3_alias() { ALIAS="budir"; }
+step_3_alias() { echo "budir"; }
 step_3() {
   local arg
   local configTarget=0
@@ -105,7 +105,7 @@ step_3() {
   done
 
   if [ -z "$1" ] ; then
-    echoerr " [E] Nothing found to backup $1"
+    error -e "Nothing found to backup $1"
     exit 1
   fi
 
@@ -125,7 +125,7 @@ step_3() {
     buTarget=$(echo "$BACKUP_TARGET" | sed 's:/*$::')
   else
     if [ -z "$1" ] ; then
-      echoerr " [E] No valid target found"
+      error -e "No valid target found"
       exit 1
     fi
     buTarget=$(echo "$1" | sed 's:/*$::')
@@ -133,7 +133,7 @@ step_3() {
   fi
   if [ ! -d "${buTarget}" ] && [ ! -L "${buTarget}" ]
   then
-    echoerr " [E] Backup target (${buTarget}) doesn't exist"
+    error -e "Backup target (${buTarget}) doesn't exist"
     exit 1
   fi
 
@@ -141,9 +141,9 @@ step_3() {
     buExcludes+=("--exclude='$exclu'")
   done
 
-  echoseq " [I] Source  : $buSource"
-  echoseq " [I] Target  : $buTarget"
-  echoseq " [I] Excludes: $@"
+  info "Source  : $buSource"
+  info "Target  : $buTarget"
+  info "Excludes: $@"
 
   #fix doubling trailing slash on verbose output when backing up root
   local tmpSource="$buSource/"
@@ -160,7 +160,7 @@ step_3() {
   fi
 
   if [ ! -w "${buTarget}" ] ; then 
-    echoerr " [E] Backup target (${buTarget}) is not writable"
+    error -e "Backup target (${buTarget}) is not writable"
     exit 1
   fi
 
@@ -174,7 +174,7 @@ step_3() {
 }
 
 step_100_info() { echo "Install $toolBin"; }
-step_100_alias() { ALIAS="install"; }
+step_100_alias() { echo "install"; }
 step_100() {
   exe apt update
   exe apt install $toolBin $APTOPT
@@ -188,6 +188,6 @@ checkInstalled() {
   toolBin="$(command -v $toolBin)"
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
 
diff --git a/seqs/basics.sh b/seqs/basics.sh
index f7eafed..749d33d 100755
--- a/seqs/basics.sh
+++ b/seqs/basics.sh
@@ -15,7 +15,7 @@ WSUBDIR="${WDIR}/basics"
 #}
 
 step_10_info() { echo "ssmtp installation"; }
-step_10_alias() { ALIAS="ssmtp"; }
+step_10_alias() { echo "ssmtp"; }
 step_10() {
   exe apt update && apt install "$SSMTP_DEPS"
   endReturn -o $? "ssmtp installation failed"
@@ -23,19 +23,19 @@ step_10() {
 SSMTP_DEPS="ssmtp"
 
 step_11_info() { echo "ssmtp setup"; }
-step_11_alias() { ALIAS="ssmtpSetup"; }
+step_11_alias() { echo "ssmtpSetup"; }
 step_11() {
   if [ ! -f "$CONFIG_FILE_SSMTP" ] ; then
-    echoerr " [E] User config ($CONFIG_FILE_SSMTP) not found"
-    echoerr "     See $CONFIG_FILE_SSMTP_TEMPLATE"
+    error -e "User config ($CONFIG_FILE_SSMTP) not found"
+    error -e "     See $CONFIG_FILE_SSMTP_TEMPLATE"
     return 1
   fi
   addConf -c -f "$CONFIG_FILE_SSMTP" "$CONFIG_LOC_SSMTP"
   endReturn -o $? "Could not write ssmtp configuration"
 
   if [ ! -f "$CONFIG_FILE_SSMTP_AL" ] ; then
-    echoerr " [W] User aliases ($CONFIG_FILE_SSMTP_AL) not found"
-    echoerr "     See $CONFIG_FILE_SSMTP_TEMPLATE or modify $CONFIG_LOC_SSMTP_AL directly"
+    warning -e "User aliases ($CONFIG_FILE_SSMTP_AL) not found"
+    error -e "     See $CONFIG_FILE_SSMTP_TEMPLATE or modify $CONFIG_LOC_SSMTP_AL directly"
     return 1
   fi
   addConf -c -f "$CONFIG_FILE_SSMTP_AL" "$CONFIG_LOC_SSMTP_AL"
@@ -52,17 +52,17 @@ step_13_info() {
   echo -n "Send test E-Mail to "
   if [ -z $2 ] ; then echo "<MAILADDRESS>"; else echo "$2"; fi 
 }
-step_13_alias() { ALIAS="ssmtpTest"; }
+step_13_alias() { echo "ssmtpTest"; }
 step_13() {
   if [ ! -z "$2" ] || [ "$2" == "" ] ; then
-    echoerr " [E] No mailaddress provided"
+    error -e "No mailaddress provided"
   fi
 
   exep "echo \"Subject: sendmail test\" | sendmail -v $2"
 }
 
 step_15_info() { echo "ssmtp help"; }
-step_15_alias() { ALIAS="ssmtpHelp"; }
+step_15_alias() { echo "ssmtpHelp"; }
 step_15() {
   echo " Configuration files expected by this seq:"
   echo
@@ -77,5 +77,5 @@ step_15() {
   echo "  - $CONFIG_LOC_SSMTP_AL"
 }
 
-VERSION_SEQREV=9
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/calibreweb.sh b/seqs/calibreweb.sh
index 25061a9..6b0b1b1 100755
--- a/seqs/calibreweb.sh
+++ b/seqs/calibreweb.sh
@@ -15,25 +15,25 @@ SCRIPT_NAME=${SCRIPT_FILE%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## or to use sequencer api with global config file:
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
   ## Return of non zero value will abort the sequence
   return 0
 }
 
 step_1_info() { echo "Install dependencies"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt install $toolDeps $APTOPT
 }
@@ -44,14 +44,14 @@ step_2() {
     exe adduser --disabled-password --disabled-login --home-dir "$CALWEB_USER_HOME" --gecos "" $CALWEB_USER
     exe usermod -aG users $CALWEB_USER
   else
-    echoseq " [W] User $CALWEB_USER already exists"
+    warning "User $CALWEB_USER already exists"
   fi
   if [ ! -e "$CALWEB_VENV_ROOT/bin" ]; then
     exe python3 -m venv "$CALWEB_VENV_ROOT"
     endReturn -o $? "Creating virtual environment failed"
     exe chown -R ${CALWEB_USER}: "$CALWEB_BASE"
   else
-    echoseq " [W] Virtual env. $CALWEB_VENV_ROOT already exists"
+    warning "Virtual env. $CALWEB_VENV_ROOT already exists"
   fi
 }
 
@@ -70,6 +70,8 @@ step_4() {
     toolFeatures[$i]="$toolPipName[${toolFeatures[$i]}]"
   done
   exe ${CALWEB_VENV_ROOT}/bin/pip install "${toolFeatures[@]}"
+  # Needed for in-app update
+  exe chown -R "${CALWEB_USER}": "${CALWEB_VENV_ROOT}/lib/python*/site-packages/calibreweb"
 }
 
 step_5_info() { echo "Install systemd service"; }
@@ -86,16 +88,16 @@ step_6() {
 }
 
 step_15_info() { echo "Upgrade python pip"; }
-step_15_alias() { ALIAS="upgradepip"; }
+step_15_alias() { echo "upgradepip"; }
 step_15()
 {
   exe ${CALWEB_VENV_ROOT}/bin/pip install --upgrade pip
 }
 
 step_100_info() { echo "Setup notes"; }
-step_100_alias() { ALIAS="notes"; }
+step_100_alias() { echo "notes"; }
 step_100() {
-  outColor green
+  color green
   cat <<NOTES_END
 # Default admin login:
 
@@ -127,5 +129,5 @@ proxy_set_header        X-Script-Name   /calibre;  # IMPORTANT: path has NO trai
 NOTES_END
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/certbot.sh b/seqs/certbot.sh
index a6744bb..0f50238 100755
--- a/seqs/certbot.sh
+++ b/seqs/certbot.sh
@@ -12,7 +12,7 @@ CONFIG=0
 CONFIG_FILE_NAME="${toolName}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   local confReturn=$?
   if [ $confReturn -eq 0 ] ; then
@@ -21,13 +21,13 @@ step_config() {
 }
 
 step_1_info() { echo "Install $toolName for letsencrypt"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local osName=
   local distName=
 
   if [ "$(which lsb_release)" == "" ] ; then
-    echoerr " [W] Cannot detect OS. Assuming Ubuntu"
+    warning -e "Cannot detect OS. Assuming Ubuntu"
     osName="Ubuntu"
   else  
     osName=$(lsb_release -is)
@@ -35,14 +35,14 @@ step_1() {
   fi
 
   if [ "$osName" == "" ] ; then
-    echoerr " [W] Error dedecting OS. Assuming Ubuntu"
+    warning -e "Error dedecting OS. Assuming Ubuntu"
     osName="Ubuntu"
   fi
 
   echo " [I] Detected OS: $osName $distName"
 
   local aptOption=
-  if [ $QUIET -ne 0 ] ; then
+  if quiet ; then
     aptOption="-y"
   else
     aptOption=""
@@ -69,7 +69,7 @@ step_1() {
 }
 
 step_2_info() { echo "Create or update letsencrypt certificate"; }
-step_2_alias() { ALIAS="update"; }
+step_2_alias() { echo "update"; }
 step_2() {
   endCheckEmpty CERTBOT_DOMAINS "No domain list found. Check configuration"
   endCheckEmpty CERTBOT_WEBROOT "Invalid web root. Check configuration"
@@ -79,5 +79,5 @@ step_2() {
     -m "$CERTBOT_MAIL" ${CERTBOT_DOMAINS[@]/#/-d }
 }
 
-VERSION_SEQREV=11
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/coturn.sh b/seqs/coturn.sh
index 17e75d9..e48186a 100755
--- a/seqs/coturn.sh
+++ b/seqs/coturn.sh
@@ -16,7 +16,7 @@ SCRIPT_NAME=${SCRIPT_FILE%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   #echo "Called once before executing steps."
   ## e.g. to source a config file manually:
   #. "$CONFIG_FILE"
@@ -28,14 +28,14 @@ step_config() {
   #  CONFIG=1
   #else
   #  # End if no configuration file exists
-  #  [ $DRY -eq 0 ] && return -1
+  #  dry || return -1
   #fi
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
   return 0
 }
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install $toolDeps $APTOPT
@@ -47,7 +47,7 @@ step_10_info() {
   echoinfo "   -l  :  Always output update required and error information"
   echoinfo "          (even with -qq)"
 }
-step_10_alias() { ALIAS="updateip"; }
+step_10_alias() { echo "updateip"; }
 step_10() {
   exitIfRunning
   shift
@@ -56,7 +56,7 @@ step_10() {
   local ipRegex='^[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\/*[0-9]*$'
   local dnsUrl="46.182.19.48" #digitalcourage.de/support/zensurfreier-dns-server
   local dnsFallbackUrl="194.150.168.168" #dns.as250.net; Berlin/Frankfurt
-  local lecho="echoseq"
+  local lecho="info"
   if [ "$1" == "-l" ]; then
     lecho="echo"
     shift
@@ -88,23 +88,23 @@ step_10() {
     $lecho "[$(date)] [I] Restarting $toolName"
     exe /bin/systemctl restart $toolServiceName
   else
-    echoseq "[$(date)] [I] No update required (via $ipUpdater). Current ip: $confIp"
+    info "[$(date)] [I] No update required (via $ipUpdater). Current ip: $confIp"
   fi
 }
 
 step_12_info() { echo "Setup public ip update cron job every 5 minutes"; }
-step_12_alias() { ALIAS="cronip"; }
+step_12_alias() { echo "cronip"; }
 step_12() {
-  echoseq " [I] Setup $ipCronLoc"
+  info "Setup $ipCronLoc"
   addConf -s "$ipCron" "$ipCronLoc"
 } 
 ipCronLoc="/etc/cron.d/update_public_ip"
 ipCron="*/5 * * * * root $WDIR/$SCRIPT_FILE -qq updateip"
 
 step_100_info() { echo "Installation notes"; }
-step_100_alias() { ALIAS="notes"; }
+step_100_alias() { echo "notes"; }
 step_100() {
-  outColor green
+  color green
   cat <<COTURN_EOF
 # Port forwarding
 
@@ -130,5 +130,5 @@ chmod g+r /etc/letsencrypt/archive/\$LOC_DOMAIN/privkey*
 COTURN_EOF
 }
 
-VERSION_SEQREV=13
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/couchpotato.sh b/seqs/couchpotato.sh
index cba0278..029aec6 100755
--- a/seqs/couchpotato.sh
+++ b/seqs/couchpotato.sh
@@ -14,14 +14,14 @@ SCRIPT_NAME=${SCRIPT_NAME%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
   else
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
   return 0
 }
 
@@ -29,7 +29,7 @@ step_1_info() {
   echo "Install $toolName"
   echoinfo "Default port: 5050"
 }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install $toolDeps $APTOPT
@@ -56,10 +56,10 @@ step_4() {
 }
 
 step_5_info() { echo "Add ufw rule for web interface"; }
-step_5_alias() { ALIAS="ufw"; }
+step_5_alias() { echo "ufw"; }
 step_5() {
   exe ufw allow in on eth0 to any port 5050 proto tcp comment "couchpotato"
 }
 
-VERSION_SEQREV=12
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/debianrpi.sh b/seqs/debianrpi.sh
index 95e564a..1d160d6 100755
--- a/seqs/debianrpi.sh
+++ b/seqs/debianrpi.sh
@@ -24,8 +24,8 @@ SCRIPT_NAME=${SCRIPT_NAME%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+seq_config() {
+  quiet && APTOPT="-y"
   return 0
 }
 
@@ -33,16 +33,16 @@ step_1_info() {
   echo "Download latest xz-compressed image [IMAGE FILE URL] [SD CARD DEVICE]"
   echoinfo "$toolDownSite"
 }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   shift
   SDDEV="$2"
-  if [ -z "$1" ] && [ $QUIET -eq 0 ] ; then
+  if [ -z "$1" ] && interactive ; then
     read -p "Provide image download url from $toolDownSite: " toolDownUrl
   elif [ ! -z "$1" ] ; then
     toolDownUrl="$1"
   else
-    echoerr " [E] No image file provided for download"
+    error -e "No image file provided for download"
     exit 1
   fi
 
@@ -65,7 +65,7 @@ step_1() {
     endReturn -o $? "Error downloading $downDownFile"
   fi
 
-  echoseq " [I] Checking SHA256 checksum"
+  info "Checking SHA256 checksum"
   exe cd $(dirname "$toolDownFile")
   exe sha256sum -c "$downShaFile" >>/dev/null 
   endReturn -o $? "SHA256 checksum error"
@@ -81,14 +81,14 @@ step_2() {
   # check if device was confirmed
   endReturn -o $? "SD card device not found"
 
-  echoseq " [I] Writing $(basename "$toolDownFile")"
+  info "Writing $(basename "$toolDownFile")"
   exep "xzcat \"$toolDownFile\" | dd of=$SDDEV bs=64k oflag=dsync status=progress"
   exe sync
 }
 
 step_3_info() { echo "Prepare SD card for first run"; }
 step_3() {
-  outColor green
+  color green
   cat <<PREPARE_EOF
 [I] Setup static IP
     [etc/network/interfaces.d/eth0]
@@ -122,10 +122,10 @@ PREPARE_EOF
 }
 
 step_10_info() { echo "Essential debian setup"; }
-step_10_alias() { ALIAS="setup"; }
+step_10_alias() { echo "setup"; }
 step_10() {
   if [ -z "$(ls /etc/default | grep raspi)" ] ; then
-    echoerr " [E] Not on a Raspberry pi"
+    error -e "Not on a Raspberry pi"
     return 1
   fi
 
@@ -144,7 +144,7 @@ step_12() {
   local localUs="en_US.UTF-8"
   local localUsDefault="$localUs UTF-8"
   if [ ! -f "$localesConfigLoc" ] ; then
-    echoerr " [E] Install packages locales first"
+    error -e "Install packages locales first"
     exit 1
   fi
 
@@ -152,18 +152,18 @@ step_12() {
   endReturn -o $? "Changing locales failed"
   exe locale-gen
   exe update-locale LANG=$localUs
-  echoseq " [I] Logout and login for changes to be active"
+  info "Logout and login for changes to be active"
 }
 localesConfigLoc="/etc/locale.gen"
 
 step_14_info() { echo "Change hostname [HOSTNAME]"; }
-step_14_alias() { ALIAS="hostname"; }
+step_14_alias() { echo "hostname"; }
 step_14() {
   shift
   local localHostname=$1
   endCheckEmpty localHostname "No hostname provided"
   if [ $(grep -r "$localHostname" "$hostsLoc">>/dev/null; echo $?) -eq 0 ] ; then
-    echoseq " [I] Hostname $localHostname already defined"
+    info "Hostname $localHostname already defined"
     return 0
   fi
   exe hostnamectl set-hostname "$localHostname"
@@ -173,14 +173,14 @@ step_14() {
 hostsLoc="/etc/hosts"
 
 step_16_info() { echo "Install cifs mounting requirements"; }
-step_16_alias() { ALIAS="cifs"; }
+step_16_alias() { echo "cifs"; }
 step_16() {
   exe apt install cifs-utils $APTOPT
 }
 
 step_17_info() { echo "Cifs notes"; }
 step_17() {
-  outColor green
+  color green
   cat <<CIFS_EOF
 # Example fstab entry
   [/etc/fstab]
@@ -203,9 +203,9 @@ CIFS_EOF
 }
 
 step_19_info() { echo "Setup notes"; }
-step_19_alias() { ALIAS="setupnotes"; }
+step_19_alias() { echo "setupnotes"; }
 step_19() {
-  outColor green
+  color green
   cat <<SETUPNOTES_EOF
 # Secure root with a password
 passwd
@@ -217,9 +217,9 @@ SETUPNOTES_EOF
 }
 
 step_40_info() { echo "Boot from HD notes"; }
-step_40_alias() { ALIAS="hdboot"; }
+step_40_alias() { echo "hdboot"; }
 step_40() {
-  outColor green
+  color green
   cat <<HDBOOT_EOF
 [I] Raspberry pi 4 boots from USB automatically if there is no SD available
     (needs boot loader version September 3rd)
@@ -268,7 +268,7 @@ read_sd_dev() {
   fi
 
   if [ ! -b "$SDDEV" ] ; then
-    echoerr " [I] $SDDEV not a block device"
+    info -e "$SDDEV not a block device"
     SDDEV=
     return 1
   fi
@@ -296,5 +296,5 @@ read_sd_dev() {
 }
 SDBOOTPARTNO=1
 SDROOTPARTNO=2
-VERSION_SEQREV=12
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/downloader.sh b/seqs/downloader.sh
index fc50a4c..18273f0 100755
--- a/seqs/downloader.sh
+++ b/seqs/downloader.sh
@@ -10,7 +10,7 @@ SCRIPT_NAME=${SCRIPT_NAME%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   checkVpn
 
   initSeqConfig -t "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
@@ -18,14 +18,14 @@ step_config() {
     CONFIG=1
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
   return 0
 }
 
 step_1_info() { echo "Install mono"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt install apt-transport-https dirmngr gnupg ca-certificates
   exe apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
@@ -319,17 +319,17 @@ WantedBy=multi-user.target
 Alias=bazarr.service"
 
 step_15_info() { echo "Create ufw rules for default ports"; }
-step_15_alias() { ALIAS="ufw"; }
+step_15_alias() { echo "ufw"; }
 step_15() {
   exe ufw allow in on eth0 to any port 6789 proto tcp comment "NZBGet"
   exe ufw allow in on eth0 to any port 9117 proto tcp comment "Jackett. Rules for Sonarr und Radarr in /etc/ufw/rules.before"
 
-  outColor red
+  color red
   echo
   echo "[W] Add the following lines before \"# drop INVALID packets\""
   echo "    [/etc/ufw/before.rules]"
   echo
-  outColor green
+  color green
   echo "# Allow all packages to sonarr and radarr"
   echo "# ufw thinks that nzb360 sends messages after socket is closed"
   echo "-A ufw-before-input -i eth0 -p tcp --dport 7878 -j ACCEPT"
@@ -362,11 +362,11 @@ step_16() {
 }
 
 step_17_info() { echo "Install danted socks proxy"; }
-step_17_alias() { ALIAS="danted"; }
+step_17_alias() { echo "danted"; }
 step_17() {
   systemctl status danted.service >>/dev/null 2>&1
   if [ $? -eq 0 ]; then
-    echoseq " [I] Danted already installed"
+    info "Danted already installed"
     return 0
   fi
   exe apt update
@@ -419,7 +419,7 @@ DANTED_EOF
 }
 
 step_19_info() { echo "Disable apt-daily activities"; }
-step_19_alias() { ALIAS="aptdaily"; }
+step_19_alias() { echo "aptdaily"; }
 step_19() {
   exe /usr/bin/systemctl stop apt-daily-upgrade.timer
   exe /usr/bin/systemctl stop apt-daily.timer
@@ -430,22 +430,18 @@ step_19() {
 }
 
 step_21_info() {
-  local pInstallDir="${DLD_DIR}/prowlarr"
-  case $CONTEXT_HELP in
-    0) 
-      if [ -e "$pInstallDir" ]; then
-        echo -n "Upgrade "
-      else
-        echo -n "Install "
-      fi
-      ;;
-    *)
-      echo -n "Install/Update ";;
-  esac 
+  local pInstallDir="${DLD_DIR:-}/prowlarr"
+  if contextHelp ; then
+    echo -n "Install/Update "
+  elif [ -e "$pInstallDir" ]; then
+    echo -n "Upgrade "
+  else
+    echo -n "Install "
+  fi
   echo "prowlarr for arm64"
   echoinfo "Default port: 9696"
 }
-step_21_alias() { ALIAS="prowlarr"; }
+step_21_alias() { echo "prowlarr"; }
 step_21() {
 #  local pDownDir="/tmp"
   local pInstallDir="${DLD_DIR}/prowlarr"
@@ -455,10 +451,10 @@ step_21() {
 
   if [ -e "$pInstallDir" ]; then
     prowlarrUpgrade=1
-    echoseq " [I] Stopping prowlarr service"
-    echoseq "     Service will not be started automatically after update"
+    info "Stopping prowlarr service"
+    info "     Service will not be started automatically after update"
     exe service prowlarr stop
-    echoseq " [I] Moving existing $pInstallDir as backup"
+    info "Moving existing $pInstallDir as backup"
     exe mv "$pInstallDir" "${pInstallDir}_bu_"`date +%Y%m%d-%H%M%S`
   fi 
 
@@ -470,12 +466,12 @@ pTar="/tmp/Prowlarr.tgz"
 prowlarrUpgrade=0
 
 step_22_info() { echo "Clean prowlarr download"; }
-step_22_alias() { ALIAS="prowlarrclean"; }
+step_22_alias() { echo "prowlarrclean"; }
 step_22() {
   exe rm -rf "$pTar"
   if [ $prowlarrUpgrade -ne 0 ]; then
-    echoseq " [I] Stopping sequence here."
-    echoseq "     Following steps only exected for fresh installation."
+    info "Stopping sequence here."
+    info "     Following steps only exected for fresh installation."
     exit 0
   fi 
 }
@@ -512,22 +508,18 @@ step_24() {
 }
 
 step_30_info() {
-  local pInstallDir="${DLD_DIR}/readarr"
-  case $CONTEXT_HELP in
-    0) 
-      if [ -e "$pInstallDir" ]; then
-        echo -n "Upgrade "
-      else
-        echo -n "Install "
-      fi
-      ;;
-    *)
-      echo -n "Install/Update ";;
-  esac 
+  local pInstallDir="${DLD_DIR:-}/readarr"
+  if contextHelp ; then
+    echo -n "Install/Update "
+  elif [ -e "$pInstallDir" ]; then
+    echo -n "Upgrade "
+  else
+    echo -n "Install "
+  fi
   echo "readarr for arm64"
   echoinfo "Default port: 8787"
 }
-step_30_alias() { ALIAS="readarr"; }
+step_30_alias() { echo "readarr"; }
 step_30() {
 #  local pDownDir="/tmp"
   local lInstallDir="${DLD_DIR}/readarr"
@@ -537,10 +529,10 @@ step_30() {
 
   if [ -e "$lInstallDir" ]; then
     readarrUpgrade=1
-    echoseq " [I] Stopping readarr service"
-    echoseq "     Service will not be started automatically after update"
+    info "Stopping readarr service"
+    info "     Service will not be started automatically after update"
     exe service readarr stop
-    echoseq " [I] Moving existing $lInstallDir as backup"
+    info "Moving existing $lInstallDir as backup"
     exe mv "$lInstallDir" "${lInstallDir}_bu_"`date +%Y%m%d-%H%M%S`
   fi 
 
@@ -552,12 +544,12 @@ readarrTar="/tmp/Readarr.tar.gz"
 readarrUpgrade=0
 
 step_31_info() { echo "Clean readarr download"; }
-step_31_alias() { ALIAS="readarrclean"; }
+step_31_alias() { echo "readarrclean"; }
 step_31() {
   exe rm -rf "$readarrTar"
   if [ $readarrUpgrade -ne 0 ]; then
-    echoseq " [I] Stopping sequence here."
-    echoseq "     Following steps only exected for fresh installation."
+    info "Stopping sequence here."
+    info "     Following steps only exected for fresh installation."
     exit 0
   fi
 }
@@ -595,7 +587,7 @@ step_33() {
 }
 
 step_50_info() { echo "Upgrade bazarr"; }
-step_50_alias() { ALIAS="upgradebazarr"; }
+step_50_alias() { echo "upgradebazarr"; }
 step_50() {
   local bazarrServiceLoc="/etc/systemd/system/bazarr.service"
   local lService=`eval "echo \"$bazarrService\""`
@@ -610,8 +602,8 @@ step_50() {
 
 checkVpn() {
   ip -br a | grep tun >>/dev/null 2>&1
-  [ $? -eq 0 ] && echoseq " [W] A VPN connection is possibly active. Consider deactivating it befor any apt operation."
+  [ $? -eq 0 ] && warning "A VPN connection is possibly active. Consider deactivating it befor any apt operation."
 }
 
-VERSION_SEQREV=13
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/ebackup.sh b/seqs/ebackup.sh
index 5f98a4a..0a43062 100755
--- a/seqs/ebackup.sh
+++ b/seqs/ebackup.sh
@@ -15,19 +15,19 @@ SCRIPT_NAME=$(basename -- $0)
 SCRIPT_NAME=${SCRIPT_NAME%%.*}
 CONFIG_FILE_TEMPLATE="$WDIR/${SCRIPT_NAME}.cfg.example"
 
-step_config() {
+seq_config() {
   initSeqConfig -p "$SCRIPT_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
   else
-    [ $DRY -eq 0 ] && return 1
+    dry || return 1
   fi
   toolSyslogTag="${SCRIPT_NAME}-$SEQ_PROFILE_NAME"
 }
 
 step_1_info() { 
   echo -n "Backup "
-  if [ $CONTEXT_HELP -ne 0 ] ; then
+  if contextHelp ; then
     echo -n "selected profile"
   else
     echo -n "profile: $SEQ_PROFILE_NAME"
@@ -36,7 +36,7 @@ step_1_info() {
   echoinfo " [OPTIONS]"
   echoinfo "   --no-purge, -n : Do not purge old backups after backup"
 }
-step_1_alias() { ALIAS="backup"; }
+step_1_alias() { echo "backup"; }
 step_1() {
   shift
 
@@ -89,7 +89,7 @@ step_1() {
 }
 
 step_3_info() { echo "Verify selected backup"; }
-step_3_alias() { ALIAS="verify"; }
+step_3_alias() { echo "verify"; }
 step_3() {
   shift
 
@@ -111,7 +111,7 @@ step_5_info() {
   echoinfo "                                     (file or folder)"
   echoinfo "   --time, -t <TIME> : Age of file to be restored"
 }
-step_5_alias() { ALIAS="restore"; }
+step_5_alias() { echo "restore"; }
 step_5() {
   shift
 
@@ -134,7 +134,7 @@ step_5() {
   done
 
   if [ -z "$1" ] ; then
-    echoerr " [E] No target provided"
+    error -e "No target provided"
     return 1
   fi
   local ebuLocalTarget="$1"
@@ -150,7 +150,7 @@ step_5() {
 }
 
 step_7_info() { echo "Purge old backups [TARGET]"; }
-step_7_alias() { ALIAS="purge"; }
+step_7_alias() { echo "purge"; }
 step_7() {
   shift
   local ebuTarget="$EBU_TARGET"
@@ -166,7 +166,7 @@ step_7() {
   elif [ ! -z "$EBU_MAX_FULLS_WITH_INCRS" ] ; then 
     dupCommand+="remove-all-inc-of-but-n-full $EBU_MAX_FULLS_WITH_INCRS "
   else
-    if [ $QUIET -eq 0 ] ; then echoerr " [W] No purge option configured" ; fi
+    if interactive ; then warning -e "No purge option configured" ; fi
     return 1
   fi
 
@@ -180,7 +180,7 @@ step_20_info() {
   shift
   local ebuTarget=$EBU_TARGET
   [ ! -z "$1" ] && ebuTarget="$1"
-  if [ $CONTEXT_HELP -ne 0 ]; then
+  if contextHelp; then
     echo "Status of (profile) [TARGET]"
   elif [ ! -z "$1" ]; then
     echo "Status of target: $ebuTarget"
@@ -188,7 +188,7 @@ step_20_info() {
     echo "Status of profile \"$SEQ_PROFILE_NAME\" target: $ebuTarget"
   fi
 }
-step_20_alias() { ALIAS='status'; }
+step_20_alias() { echo 'status'; }
 step_20() {
   shift
   local ebuTarget="$EBU_TARGET"
@@ -201,7 +201,7 @@ step_20() {
 }
 
 step_22_info() { echo "List backup files [TARGET]"; }
-step_22_alias() { ALIAS='list'; }
+step_22_alias() { echo 'list'; }
 step_22() {
   shift
   local ebuTarget="$EBU_TARGET"
@@ -216,7 +216,7 @@ step_22() {
 
 step_70_info() { 
   echo -n "Manage cron file for "
-  if [ $CONTEXT_HELP -ne 0 ] ; then
+  if contextHelp ; then
     echo -n "selected profile"
   else
     echo -n "profile: $SEQ_PROFILE_NAME"
@@ -225,7 +225,7 @@ step_70_info() {
   echoinfo " [OPTIONS]"
   echoinfo "   --remove, -r : remove cron file"
 }
-step_70_alias() { ALIAS='cron'; }
+step_70_alias() { echo 'cron'; }
 step_70() {
   shift
   local arg
@@ -267,7 +267,7 @@ step_70() {
 }
 
 step_72_info() { echo "Update all profile cron files"; }
-step_72_alias() { ALIAS="reload"; }
+step_72_alias() { echo "reload"; }
 step_72() {
   for seq in "$SEQ_CONFIG_HOME/"* ; do
     seq=$(basename ${seq})
@@ -276,10 +276,10 @@ step_72() {
 }
 
 step_100_info() { echo "Install $toolName $toolPpa"; }
-step_100_alias() { ALIAS="install"; }
+step_100_alias() { echo "install"; }
 step_100() {
   local aptOpt=
-  if [ $QUIET -ne 0 ] ; then
+  if quiet ; then
     aptOpt="-y"
   fi
 
@@ -300,7 +300,7 @@ unsetPassphrase() {
 checkFileHead() {
   local readChar
   if [ ! -e "$1" ] ; then
-    echoerr " [E] File $1 not found"
+    error -e "File $1 not found"
     return 1
   fi
   read -r -n ${#2} readChar < "$1"
@@ -326,5 +326,5 @@ checkInstalled() {
   fi 
 }
 
-VERSION_SEQREV=12
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/ejabberd.sh b/seqs/ejabberd.sh
index e991888..9390ecb 100755
--- a/seqs/ejabberd.sh
+++ b/seqs/ejabberd.sh
@@ -13,7 +13,7 @@ myUser=
 myPass=
 
 step_1_info() { echo "Install $toolName via apt"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install -y $toolName
@@ -72,13 +72,13 @@ Some essential settings needed:
 - Admin User"
 
 step_4_info() { echo "Restart $toolName"; }
-step_4_alias() { ALIAS="restart"; }
+step_4_alias() { echo "restart"; }
 step_4() {
   exe service ejabberd restart
 }
 
 step_5_info() { echo "Create new user"; }
-step_5_alias() { ALIAS="adduser"; }
+step_5_alias() { echo "adduser"; }
 step_5() {
   readDomain
   readUser
@@ -87,14 +87,14 @@ step_5() {
 }
 
 step_10_info() { echo "List existing user"; }
-step_10_alias() { ALIAS="listuser"; }
+step_10_alias() { echo "listuser"; }
 step_10() {
   readDomain
   exe ejabberdctl registered_users $myDomain
 }
 
 step_12_info() { echo "Change password for existing user"; }
-step_12_alias() { ALIAS="passwd"; }
+step_12_alias() { echo "passwd"; }
 step_12() {
   readDomain
   readUser
@@ -103,7 +103,7 @@ step_12() {
 }
 
 step_14_info() { echo "Remove registered user"; }
-step_14_alias() { ALIAS="deluser"; }
+step_14_alias() { echo "deluser"; }
 step_14() {
   readDomain
   readUser
@@ -143,5 +143,5 @@ readUserPass() {
 }
 
 SEQDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >>/dev/null 2>&1 && pwd )"
-VERSION_SEQREV=4
+readonly sqr_minVersion=16
 . sequencer.sh
diff --git a/seqs/element-web.sh b/seqs/element-web.sh
index 957a337..c574d9a 100755
--- a/seqs/element-web.sh
+++ b/seqs/element-web.sh
@@ -10,7 +10,7 @@ CONFIG=0
 CONFIG_FILE_NAME="${toolName}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     echo "     ${toolName} path:   ${ELEMENT_WEB_LOC}"
@@ -20,7 +20,7 @@ step_config() {
 }
 
 step_18_info() { echo "Check for updates"; }
-step_18_alias() { ALIAS="updatecheck"; }
+step_18_alias() { echo "updatecheck"; }
 step_18() {
   shift
   local latestVersion=
@@ -49,12 +49,12 @@ step_20_info() {
     echo
   fi
 }
-step_20_alias() { ALIAS="backup"; }
+step_20_alias() { echo "backup"; }
 step_20() {
   shift
   local tempRoot=
   if [ $CONFIG -eq 0 ] ; then
-    echoerr " [E] No configuration file found"
+    error -e "No configuration file found"
     return 1
   fi
   if [ ! -z $ELEMENT_WEB_BACKUP ] ; then
@@ -76,7 +76,7 @@ step_22_info() {
   shift
   if [ -z $1 ] ; then
     echo -n "Get latest version from github"
-    if [ $CONTEXT_HELP -eq 0 ] ; then
+    if ! contextHelp ; then
       echo ": $(curl --silent "$latestUrl" | grep -Po '"tag_name": "\K.*?(?=")')"
     else
       echo " [CUSTOM VERSION]"
@@ -85,7 +85,7 @@ step_22_info() {
     echo "Get version $1 from github"
   fi
 }
-step_22_alias() { ALIAS="upgrade"; }
+step_22_alias() { echo "upgrade"; }
 step_22() {
   shift # don't need step number
   local latestVersion=
@@ -96,16 +96,16 @@ step_22() {
   fi
 
   if [ -z $latestVersion ] ; then
-    echoerr " [E] Cannot determine latest version from github repository"
+    error -e "Cannot determine latest version from github repository"
     return 1
-  elif [ $QUIET -eq 0 ] ; then
+  elif interactive ; then
     echo
     exe read -p "Install $latestVersion to $ELEMENT_WEB_LOC [n]o/(y)es? " answer
     case $answer in
       [yY])
         ;;
       *)
-        echoerr " [I] Upgrade aborted"
+        info -e "Upgrade aborted"
         return 1
         ;;
     esac
@@ -155,10 +155,10 @@ tempDown="/tmp/${toolName}"
 tempLoc="$tempDown/${toolName}.tar.gz"
 
 step_24_info() { echo "Clean temporary files: $tempDown"; }
-step_24_alias() { ALIAS="clean"; }
+step_24_alias() { echo "clean"; }
 step_24() {
   exe rm -rf "$tempDown"
 }
 
-VERSION_SEQREV=11
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/fail2ban.sh b/seqs/fail2ban.sh
index 0677c84..33c2dd9 100755
--- a/seqs/fail2ban.sh
+++ b/seqs/fail2ban.sh
@@ -29,10 +29,10 @@ CONFIG_JAILS="$CONFIG_DIR/jail.d"
 #}
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   fi
 
@@ -41,7 +41,7 @@ step_1() {
 }
 
 step_2_info() { echo "Base jail configuration to use ufw"; }
-step_2_alias() { ALIAS="config"; }
+step_2_alias() { echo "config"; }
 step_2() {
   echo " [I] Create local configuration";
   addConf -f "$failConfLocal" "$toolConfLoc"
@@ -54,7 +54,7 @@ banaction_multiport = ufw
 ignoreip = 127.0.0.1/8 ::1"
 
 step_3_info() { echo "Add basic ip-blacklist"; }
-step_3_alias() { ALIAS="blacklist"; }
+step_3_alias() { echo "blacklist"; }
 step_3() {
   echo " [I] Adding filter"
   addConf -s -f "$ipBlackListFilter" "$toolFilter/$(basename $ipBlackListFilter)"
@@ -67,7 +67,7 @@ ipBlackListJail="$CONFIG_JAILS/ip-blacklist.conf"
 ipBlackListFilter="$CONFIG_FILTER/ip-blacklist.conf"
 
 step_4_info() { echo "$toolName notes"; }
-step_4_alias() { ALIAS="notes"; }
+step_4_alias() { echo "notes"; }
 step_4() {
   cat <<NOTES_EOF
 # Syslog not readable by librenms (https://github.com/fail2ban/fail2ban/issues/2734)
@@ -78,12 +78,12 @@ NOTES_EOF
 }
 
 step_20_info() { echo "Install mailserver jail"; }
-step_20_alias() { ALIAS="mail"; }
+step_20_alias() { echo "mail"; }
 step_20() {
   addConf -s -f "$mailJail" "$toolJails/$(basename $mailJail)"
   exe service $toolName restart
 }
 mailJail="$CONFIG_JAILS/mail.conf"
 
-VERSION_SEQREV=11
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/fhem.sh b/seqs/fhem.sh
index 9e8358c..b5a2c54 100755
--- a/seqs/fhem.sh
+++ b/seqs/fhem.sh
@@ -32,10 +32,10 @@ WSUBDIR="${WDIR}/${toolName}"
 #}
 
 step_1_info() { echo "Install prerequisits for $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local aptOpt=
-  if [ $QUIET != 0 ] ; then
+  if quiet ; then
     aptOpt="-y"
   fi
   #exe apt update
@@ -59,7 +59,7 @@ step_3() {
 }
 
 step_20_info() { echo "List $toolName prerequisits"; }
-step_20_alias() { ALIAS="listdeps"; }
+step_20_alias() { echo "listdeps"; }
 step_20() {
   echo " [I] $toolName prerequisits:"
   echo "$toolDeps $toolDeps2"
@@ -79,7 +79,7 @@ step_32() {
 systemdConfigLoc="/etc/systemd/system"
 
 step_34_info() { echo "Downgrade $toolName jabber dependencies (callbackIQ -> FHEM crash)"; }
-step_34_alias() { ALIAS="downgrade_xmpp"; }
+step_34_alias() { echo "downgrade_xmpp"; }
 step_34() {
   if [ ! -f $libnetDown ]; then
     exe wget "$libnetUrl" -O "$libnetDown"
@@ -91,7 +91,7 @@ step_34() {
   fi
 
   local aptOption=
-  if [ $QUIET -ne 0 ] ; then
+  if quiet ; then
     aptOption="-y"
   else
     aptOption=""
@@ -136,7 +136,7 @@ Pin: version 1.23-2
 Pin-Priority: 1000"
 
 step_37_info() { echo "Download latest speedtest python script"; }
-step_37_alias() { ALIAS="speedtestdownload"; }
+step_37_alias() { echo "speedtestdownload"; }
 step_37() {
   local lSpeedPath="/usr/local/bin/speedtest-cli"
   exe wget -O "$lSpeedPath" https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py
@@ -144,11 +144,11 @@ step_37() {
 }
 
 step_40_info() { echo "Execute fhem [COMMAND]"; }
-step_40_alias() { ALIAS="exe"; }
+step_40_alias() { echo "exe"; }
 step_40() {
   shift
   exe perl "${toolHome}/fhem.pl" 7072 "$1"
 }
 
-VERSION_SEQREV=11
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/freeradius.sh b/seqs/freeradius.sh
index 0b7bab4..83ec87b 100755
--- a/seqs/freeradius.sh
+++ b/seqs/freeradius.sh
@@ -13,27 +13,27 @@ SCRIPT_NAME=${SCRIPT_FILE%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## or to use sequencer api with profile config file support:
   initSeqConfig "$SCRIPT_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
-    echoseq " [I] Freeradius DB:   $FRAD_DB_NAME"
-    echoseq "     Daloradius home: $DRAD_HOME"
+    info "Freeradius DB:   $FRAD_DB_NAME"
+    info "     Daloradius home: $DRAD_HOME"
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
   ## Return of non zero value will abort the sequence
   return 0
 }
 
 step_50_info() { echo "Init freeradius and daloradius database"; }
-step_50_alias() { ALIAS="initdb"; }
+step_50_alias() { echo "initdb"; }
 step_50() {
   local drDbInit="$DRAD_HOME/contrib/db/mysql-daloradius.sql"
   local frDbSchema="$toolConfLoc/mods-config/sql/main/mysql/schema.sql"
@@ -48,20 +48,20 @@ step_50() {
 
 
 step_52_info() { echo "Reset freeradius and daloradius database"; }
-step_52_alias() { ALIAS="resetdb"; }
+step_52_alias() { echo "resetdb"; }
 step_52() {
   local lAnswer
 
-  if [ $QUIET -eq 0 ]; then
+  if interactive; then
     read -p "Do you really want to reset the database $FRAD_DB_NAME y/[n]? " lAnswer
   else
     lAnswer=y
   fi
   case "$lAnswer" in
     [yY])
-      echoseq -n " [I] Reseting DB...";;
+      info -n " [I] Reseting DB...";;
     *)
-      echoerr " [I] Abort reset"
+      info -e "Abort reset"
       return 1;;
   esac
 
@@ -69,5 +69,5 @@ step_52() {
   step initdb
 }
 
-VERSION_SEQREV=13
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/friendica.sh b/seqs/friendica.sh
index 93b1955..e4a7f08 100755
--- a/seqs/friendica.sh
+++ b/seqs/friendica.sh
@@ -10,7 +10,7 @@ CONFIG=0
 CONFIG_FILE_NAME="${toolName}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
@@ -27,12 +27,12 @@ step_20_info() {
     echo
   fi
 }
-step_20_alias() { ALIAS="backup"; }
+step_20_alias() { echo "backup"; }
 step_20() {
   shift
   local tempRoot=
   if [ $CONFIG -eq 0 ] ; then
-    echoerr " [E] No configuration file found"
+    error -e "No configuration file found"
     return 1
   fi
   if [ ! -z $FR_BACKUP ] ; then
@@ -63,7 +63,7 @@ step_22_info() {
   shift
   if [ -z $1 ] ; then
     echo -n "Get latest version from github"
-    if [ $CONTEXT_HELP -eq 0 ] ; then
+    if ! contextHelp ; then
       echo ": $(curl --silent "$latestUrl" | grep -Po '"tag_name": "\K.*?(?=")')"
     else
       echo " [CUSTOM VERSION]"
@@ -72,7 +72,7 @@ step_22_info() {
     echo "Get version $1 from github"
   fi
 }
-step_22_alias() { ALIAS="upgrade"; }
+step_22_alias() { echo "upgrade"; }
 step_22() {
   shift # don't need step number
   local latestVersion=
@@ -83,16 +83,16 @@ step_22() {
   fi
 
   if [ -z $latestVersion ] ; then
-    echoerr " [E] Cannot determine latest version from github repository"
+    error -e "Cannot determine latest version from github repository"
     return 1
-  elif [ $QUIET -eq 0 ] ; then
+  elif interactive ; then
     echo
     exe read -p "Install $latestVersion to $FR_LOC [n]o/(y)es? " answer
     case $answer in
       [yY])
         ;;
       *)
-        echoerr " [I] Upgrade aborted"
+        info -e "Upgrade aborted"
         return 1
         ;;
     esac
@@ -100,7 +100,7 @@ step_22() {
 
   local isInstalled=$(grep -E "Version $latestVersion" "${FR_LOC}/CHANGELOG" >>/dev/null && echo "1" || echo "0")
   if [ $isInstalled -eq 1 ] ; then
-    echoerr " [E] Version $latestVersion is already installed"
+    error -e "Version $latestVersion is already installed"
     return 2
   fi
 
@@ -163,10 +163,10 @@ tempLoc="$tempDown/fr.tar.gz"
 tempLocAddons="$tempDown/fradd.tar.gz"
 
 step_24_info() { echo "Clean temporary files: $tempDown"; }
-step_24_alias() { ALIAS="clean"; }
+step_24_alias() { echo "clean"; }
 step_24() {
   exe rm -rf "$tempDown"
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/git.sh b/seqs/git.sh
index 99fd4ce..171fbf1 100755
--- a/seqs/git.sh
+++ b/seqs/git.sh
@@ -12,25 +12,25 @@ SCRIPT_NAME=${SCRIPT_FILE%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## or to use sequencer api with global config file:
   #initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   #if [ $? -eq 0 ] ; then
   #  CONFIG=1
   #else
   #  # End if no configuration file exists
-  #  [ $DRY -eq 0 ] && return -1
+  #  dry || return -1
   #fi
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
   ## Return of non zero value will abort the sequence
   return 0
 }
 
 step_1_info() { echo "Setup global git aliases"; }
-step_1_alias() { ALIAS="alias"; }
+step_1_alias() { echo "alias"; }
 step_1() {
   local brConf="branch \
 --format='%(HEAD) %(color:yellow)%(refname:short)%(color:reset) - \
@@ -48,5 +48,5 @@ step_1() {
   exe git config --global alias.ll 'log'
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/gitea.sh b/seqs/gitea.sh
index 80cfb02..cb60c39 100755
--- a/seqs/gitea.sh
+++ b/seqs/gitea.sh
@@ -27,33 +27,33 @@ giteaDownFile="/tmp/giteaDown"
 giteaUser="git"
 versionNow=
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
   if [ -z $giteaVersion ] ; then
-    echoerr " [E] Couldn't determine latest version of $toolName"
+    error -e "Couldn't determine latest version of $toolName"
   fi
   [ ! -z "$(command -v gitea)" ] && versionNow=$(gitea --version | sed 's/.*version \([0-9.]\+\).*/\1/')
 
   checkArchitecture 
   giteaIniLoc="${SEQ_GITEA_CONF_DIR}/app.ini"
 
-  echoseq " [I] Gitea work:    $SEQ_GITEA_WORK_DIR"
-  echoseq "     Gitea config:  $SEQ_GITEA_CONF_DIR"
-  echoseq "     Git user home: $SEQ_GITEA_HOME_DIR"
-  echoseq
-  outColor yellow
-  echoseq " [W] Don't forget to adapt $SEQ_GITEA_CONF_DIR/app.ini"
-  outColor
+  info "Gitea work:    $SEQ_GITEA_WORK_DIR"
+  info "     Gitea config:  $SEQ_GITEA_CONF_DIR"
+  info "     Git user home: $SEQ_GITEA_HOME_DIR"
+  info
+  color yellow
+  warning "Don't forget to adapt $SEQ_GITEA_CONF_DIR/app.ini"
+  color
 
   ## Return of non zero value will abort the sequence
   return 0
@@ -69,7 +69,7 @@ checkArchitecture() {
 }
 
 step_1_info() { echo "Updating apt"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
 }
@@ -106,9 +106,9 @@ step_4() {
     "$SEQ_GITEA_HOME_DIR" "$SEQ_GITEA_WORK_DIR"/{custom,data,log}
   exe chown root:$SEQ_GITEA_USER "$SEQ_GITEA_CONF_DIR"
   exe chmod 770 $SEQ_GITEA_CONF_DIR
-  echoseq "Creating $giteaLogDir"
+  info "Creating $giteaLogDir"
   exe install -g $SEQ_GITEA_USER -m 770 -d "$giteaLogDir"
-  echoseq -n "Copying gitea to global location and making it executable..."
+  info -n "Copying gitea to global location and making it executable..."
   exe install -b -m 755 -T "$giteaDownFile" "$SEQ_GITEA_BIN_LOC" && echo "ok"
   endReturn "Failed to install $SEQ_GITEA_BIN_LOC"
 }
@@ -121,17 +121,17 @@ step_5() {
 step_6_info() { echo "Starting $toolName service"; }
 step_6() {
   exe systemctl enable gitea --now
-  echoseq "Before proceeding to installation you may need to create a database first with step 10"
-  echoseq
-  echoseq "Goto http://[yourip]:3000/install and complete installation"
-  echoseq
-  echoseq "Afterwards please execute step 20 to secure configuration"
+  info "Before proceeding to installation you may need to create a database first with step 10"
+  info
+  info "Goto http://[yourip]:3000/install and complete installation"
+  info
+  info "Afterwards please execute step 20 to secure configuration"
 }
 
 step_7_info() { echo "Show configuration notes"; }
-step_7_alias() { ALIAS="notes"; }
+step_7_alias() { echo "notes"; }
 step_7() {
-  outColor green
+  color green
   cat <<NOTES_END
 Final configuration notes for $giteaIniLoc:
 
@@ -173,7 +173,7 @@ step_12_info() {
     echo "Upgrade existing $toolName installation"
   fi
 }
-step_12_alias() { ALIAS="upgrade"; }
+step_12_alias() { echo "upgrade"; }
 step_12() {
   endCheckEmpty versionNow "Please install $toolName first"
   exe wget -O "$giteaDownFile" $giteaDownload
@@ -184,8 +184,8 @@ step_12() {
     exe service gitea stop
     saveReturn $?
     endReturn
-    echoseq -n "Backing up existing executable to ${toolBackup}..."
-    exe cp -ar "$SEQ_GITEA_BIN_LOC" "$toolBackup" && echoseq "ok" || echoseq "nok" 
+    info -n "Backing up existing executable to ${toolBackup}..."
+    exe cp -ar "$SEQ_GITEA_BIN_LOC" "$toolBackup" && info "ok" || info "nok" 
   fi
   exe install --backup=none -m 755 -T "$giteaDownFile" "$SEQ_GITEA_BIN_LOC"
   endReturn -o $? "Upgrade failed"
@@ -199,10 +199,10 @@ step_20() {
 }
 
 step_22_info() { echo "Open $toolName config file"; }
-step_22_alias() { ALIAS="config"; }
+step_22_alias() { echo "config"; }
 step_22() {
   exe vi "$giteaIniLoc"
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/grocy.sh b/seqs/grocy.sh
index 9446f4d..ad855b9 100755
--- a/seqs/grocy.sh
+++ b/seqs/grocy.sh
@@ -25,19 +25,20 @@ readonly sq_configFileTemplate="$sq_dir/${sq_configFileName}.example"
 sq_aptOpt=
 sq_config=0
 
-step_config() {
+seq_config() {
   initSeqConfig -p "$sq_scriptName" "$sq_configFileTemplate"
   if [ $? -eq 0 ] ; then
     sq_config=1
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
 
-  sc_grocyConf="${sc_grocyDir}/data/config.php"
+  # config not sourced if only profiles should be listed
+  sc_grocyConf="${sc_grocyDir:-}/data/config.php"
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && sq_aptOpt="-y"
+  quiet && sq_aptOpt="-y"
 
   ## Return of non zero value will abort the sequence
   return 0
@@ -52,7 +53,7 @@ step_1_info() {
   echo "Check $toolName status"
   echoinfo "Returns 1 if update is available"
 }
-step_1_alias() { ALIAS="status"; }
+step_1_alias() { echo "status"; }
 step_1() {
   getVersions
   if [ -e "${sc_grocyDir}" ] ; then
@@ -77,7 +78,7 @@ step_1() {
 }
 
 step_20_info() { echo "Backup ${toolName}"; }
-step_20_alias() { ALIAS="backup"; }
+step_20_alias() { echo "backup"; }
 step_20() {
   local lBu="${sc_grocyDir}/${sc_grocyBackup}/${toolName}_$(date +%Y%m%d-%H%M%S).tgz"
   exe cd ${sc_grocyDir}/..
@@ -89,16 +90,16 @@ step_20() {
 }
 
 step_22_info() { echo "Install/upgrade ${toolName}"; }
-step_22_alias() { ALIAS="install"; }
+step_22_alias() { echo "install"; }
 step_22() {
   getVersions
   if [[ ${versionNow} == ${versionNew} ]] ; then
     endReturn -o 1 "Latest version ${versionNow} already installed"
   else
     if [ -n "${versionNow}" ] ; then
-      echoseq " [I] Upgrading $toolName from ${versionNow} to ${versionNew}"
+      info "Upgrading $toolName from ${versionNow} to ${versionNew}"
     else
-      echoseq " [I] Installing $toolName version ${versionNew}"
+      info "Installing $toolName version ${versionNew}"
     fi
   fi
   exe wget ${downUrl} -q -O "${grocyDownLoc}"
@@ -113,16 +114,16 @@ step_22() {
   # Populate first config
   if [ ! -e "${sc_grocyConf}" ] ; then
     exe cp "${sc_grocyDir}/config-dist.php" "${sc_grocyConf}"
-    echoseq " [I] Please adjust the config: ${sc_grocyConf}"
+    info "Please adjust the config: ${sc_grocyConf}"
   else
-    echoseq " [I] Please check ${sc_grocyDir}/config-dist.php"
-    echoseq "     for new configuration options"
+    info "Please check ${sc_grocyDir}/config-dist.php"
+    info "     for new configuration options"
   fi
 }
 
-step_30_alias() { ALIAS="notes"; }
+step_30_alias() { echo "notes"; }
 step_30() {
-  outColor green
+  color green
   cat <<NOTES_END
 # Behind reverse proxy as subfolder
 
@@ -162,5 +163,5 @@ server {
 NOTES_END
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/jitsi.sh b/seqs/jitsi.sh
index c275a12..1a997ca 100755
--- a/seqs/jitsi.sh
+++ b/seqs/jitsi.sh
@@ -21,7 +21,7 @@ WDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >>/dev/null 2>&1 && pwd )"
 #}
 
 step_1_info() { echo "Installation of prerequisits"; }
-step_1_alias() { ALIAS="prepare"; }
+step_1_alias() { echo "prepare"; }
 step_1() {
   exe apt install gnupg2 git lsb-release ssl-cert ca-certificates apt-transport-https \
     tree locate software-properties-common dirmngr screen htop nano net-tools zip unzip \
@@ -47,7 +47,7 @@ step_4() {
 }
 
 step_5_info() { echo "Install nginx webserver"; }
-step_5_alias() { ALIAS="webserver"; }
+step_5_alias() { echo "webserver"; }
 step_5() {
   exe apt install nginx
   endReturn -o $? "Installation of webserver nginx failed"
@@ -58,7 +58,7 @@ step_5() {
 }
 
 step_6_info() { echo "Install ufw firewall"; }
-step_6_alias() { ALIAS="firewall"; }
+step_6_alias() { echo "firewall"; }
 step_6() {
   exe apt install ufw
   endReturn -o $? "Installation of firewall ufw failed"
@@ -76,7 +76,7 @@ step_7() {
 }
 
 step_8_info() { echo "Install $toolName"; }
-step_8_alias() { ALIAS="install"; }
+step_8_alias() { echo "install"; }
 step_8() {
   exe read -p "Make sure SSL certificates are available. Enter to continue"
   exe apt install jitsi-meet -y
@@ -135,11 +135,11 @@ step_10() {
 }
 
 step_20_info() { echo "Restart all $toolName components"; }
-step_20_alias() { ALIAS="restart"; }
+step_20_alias() { echo "restart"; }
 step_20() {
   echo " [I] Restart jitsi-meet components"
   exep "service prosody restart&& service jicofo restart && service jitsi-videobridge2 restart"
 }
 
-VERSION_SEQREV=10
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/kodi.sh b/seqs/kodi.sh
index c43e84d..9d02510 100755
--- a/seqs/kodi.sh
+++ b/seqs/kodi.sh
@@ -10,7 +10,7 @@ toolServiceFile="/etc/systemd/system/kodi.service"
 toolProfileDir="/home/kodi/.kodi"
 
 step_1_info() { echo "Install $toolName via apt"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update && apt install kodi
 }
@@ -111,7 +111,7 @@ gpu_mem=320"
 
 step_7_info() { echo "Reboot is needed for all changes to take effect"; }
 step_7() {
-  if [ $QUIET -eq "1" ] ; then
+  if quiet ; then
     answer=n
   else
     read -p "Reboot now? y/n(default)" answer
@@ -128,7 +128,7 @@ step_7() {
 }
 
 step_10_info() { echo "Send $toolName logs to syslog"; }
-step_10_alias() { ALIAS="syslog"; }
+step_10_alias() { echo "syslog"; }
 step_10() {
   addConf -s "$kodiSyslog" "$kodiSyslogLoc"
   exe chmod -f +x "$kodiSyslogLoc"
@@ -147,9 +147,9 @@ step_11() {
 
   addConf -s "$kodiSyslogService" "$kodiSyslogServiceLoc"
 
-  echoseq " [I] Consider limiting systemd journal size"
-  echoseq "     [/etc/systemd/journald.conf]"
-  echoseq "      SystemMaxUse=50M"
+  info "Consider limiting systemd journal size"
+  info "     [/etc/systemd/journald.conf]"
+  info "      SystemMaxUse=50M"
 }
 kodiSyslogServiceLoc="/etc/systemd/system/kodisyslog.service"
 kodiSyslogService="[Unit]
@@ -173,24 +173,24 @@ step_12() {
 }
 
 step_40_info() { echo "Reset music database"; }
-step_40_alias() { ALIAS="resetmusic"; }
+step_40_alias() { echo "resetmusic"; }
 step_40() {
   local i
   local answer="y"
   local musicDb=( "$toolProfileDir/userdata/Database/MyMusic"*.db )
-  echoseq " [W] Erasing:"
+  warning "Erasing:"
   for i in ${musicDb[@]}; do
-    echoseq $i
+    info $i
   done
-  [ $QUIET -eq 0 ] && read -p "Are you sure? (y)/[n] " answer
+  interactive && read -p "Are you sure? (y)/[n] " answer
   case "$answer" in 
     y|Y)
       exe rm ${musicDb[@]};;
     *)
-      echoseq " [I] Abort reset"
+      info "Abort reset"
       return 1;
   esac
 }
 
-VERSION_SEQREV=12
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/ldap.sh b/seqs/ldap.sh
index f643528..24ecc29 100755
--- a/seqs/ldap.sh
+++ b/seqs/ldap.sh
@@ -12,7 +12,7 @@ CONFIG=0
 CONFIG_FILE_NAME="${toolName}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
@@ -20,7 +20,7 @@ step_config() {
 }
 
 step_1_info() { echo "$toolName installation"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install $toolDeps
@@ -137,9 +137,9 @@ step_20() {
 }
 
 step_80_info() { echo -e "Some ldap command notes\n"; }
-step_80_alias() { ALIAS="notes"; }
+step_80_alias() { echo "notes"; }
 step_80() {
-  outColor green
+  color green
   cat <<NOTES_EOF
 # You can also check LDAP Base DN using the ldapsearch command as shown below
 ldapsearch -H ldapi:/// -x -LLL -s base -b "" namingContexts
@@ -162,7 +162,7 @@ NOTES_EOF
 }
 
 step_100_info() { echo "Add group <GROUP NAME> <USER ID>"; }
-step_100_alias() { ALIAS="addgroup"; }
+step_100_alias() { echo "addgroup"; }
 step_100() {
   shift
   local groupName=$1
@@ -178,7 +178,7 @@ member: \${memberDn}
 "
 
 step_102_info() { echo "Add user <USER ID> <USER NAME> <USER LASTNAME> <UIDNUMBER> <USER EMAIL> [USER GID]"; }
-step_102_alias() { ALIAS="adduser"; }
+step_102_alias() { echo "adduser"; }
 step_102() {
   shift
   userId="$1"
@@ -215,7 +215,7 @@ loginShell: /bin/bash
 "
 
 step_103_info() { echo "(re)Set passwort for <USER>"; }
-step_103_alias() { ALIAS="passwd"; }
+step_103_alias() { echo "passwd"; }
 step_103() {
   shift
   if [ ! -z $1 ] ; then
@@ -224,14 +224,14 @@ step_103() {
   elif [ ! -z $userId ] ; then
     echo " [I] Password operation for $userId" 
   else
-    echoerr " [E] No user id provided"
+    error -e "No user id provided"
     return 1
   fi
   exe ldappasswd -H ldapi:/// -x -D "cn=admin,$LDAP_DC" -W -S "uid=$userId,$LDAP_OU_USERS,$LDAP_DC"
 }
 
 step_105_info() { echo "Adding <USER ID> to existing group <GROUP NAME>"; }
-step_105_alias() { ALIAS="user2group"; }
+step_105_alias() { echo "user2group"; }
 step_105() {
   shift
   if [ ! -z $1 ] ; then
@@ -240,11 +240,11 @@ step_105() {
   elif [ ! -z $userId ] ; then
     echo " [I] User operation for $userId" 
   else
-    echoerr " [E] No user id provided"
+    error -e "No user id provided"
     return 1
   fi
   if [ -z $2 ] ; then
-    echoerr " [E] No group name provided"
+    error -e "No group name provided"
     return 2
   fi
   local groupName="$2"
@@ -266,7 +266,7 @@ member:
 "
 
 step_107_info() { echo "Removing <USER ID> from existing group <GROUP NAME>"; }
-step_107_alias() { ALIAS="rmusergroup"; }
+step_107_alias() { echo "rmusergroup"; }
 step_107() {
   shift
   if [ ! -z $1 ] ; then
@@ -275,11 +275,11 @@ step_107() {
   elif [ ! -z $userId ] ; then
     echo " [I] User operation for $userId" 
   else
-    echoerr " [E] No user id provided"
+    error -e "No user id provided"
     return 1
   fi
   if [ -z $2 ] ; then
-    echoerr " [E] No group name provided"
+    error -e "No group name provided"
     return 2
   fi
   local groupName="$2"
@@ -300,11 +300,11 @@ member: uid=\$userId,\$LDAP_OU_USERS,\$LDAP_DC
 "
 
 step_110_info() { echo "Remove group <GROUP NAME>"; }
-step_110_alias() { ALIAS="rmgroup"; }
+step_110_alias() { echo "rmgroup"; }
 step_110() {
   shift
   if [ -z $1 ] ; then
-    echoerr " [E] No group name provided"
+    error -e "No group name provided"
     return 1
   fi
   local groupName=$1
@@ -315,11 +315,11 @@ changetype: delete
 "
 
 step_112_info() { echo "Remove user <USER ID>"; }
-step_112_alias() { ALIAS="rmuser"; }
+step_112_alias() { echo "rmuser"; }
 step_112() {
   shift
   if [ -z $1 ] ; then
-    echoerr " [E] No user id provided"
+    error -e "No user id provided"
     return 1
   fi
   local userName=$1
@@ -330,7 +330,7 @@ changetype: delete
 "
 
 step_200_info() { echo "List available groups <ADDITONAL ATTRIBUTES...>"; }
-step_200_alias() { ALIAS="listgroups"; }
+step_200_alias() { echo "listgroups"; }
 step_200() {
   shift
   echo " [I] Available groups:"
@@ -338,7 +338,7 @@ step_200() {
 }
 
 step_202_info() { echo "List available users <ADDITONAL ATTRIBUTES...>"; }
-step_202_alias() { ALIAS="listusers"; }
+step_202_alias() { echo "listusers"; }
 step_202() {
   shift
   echo " [I] Available user:"
@@ -364,5 +364,5 @@ variable2LdifEcho() {
   echo "$tempLdif"
 }
 
-VERSION_SEQREV=10
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/librenms.sh b/seqs/librenms.sh
index 88fa8ed..482807f 100755
--- a/seqs/librenms.sh
+++ b/seqs/librenms.sh
@@ -23,19 +23,19 @@ SCRIPT_NAME=${SCRIPT_NAME%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
-    echoseq "     Install: $LNMS_DIR"
-    echoseq "      Backup: $LNMS_BU_DIR"
+    info "     Install: $LNMS_DIR"
+    info "      Backup: $LNMS_BU_DIR"
   else
-    [ $DRY -eq 0 ] && return 1
+    dry || return 1
   fi
 }
 
 step_1_info() { echo "Updating apt"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
 }
@@ -94,7 +94,7 @@ step_10() {
 
 step_11_info() { echo "MariaDB configuration"; }
 step_11() {
-  outColor green
+  color green
   cat << SQLCONF_END
 
 Edit or create /etc/mysql/mariadb.conf.d/90-myconfig.cnf and add:
@@ -112,7 +112,7 @@ SQLCONF_END
 
 step_12_info() { echo "PHP fpm/cli timezone configuration"; }
 step_12() {
-  outColor green
+  color green
   cat << PHPCONF_END
 
 Ensure date.timezone is set in php.ini to your preferred time zone. See http://php.net/manual/en/timezones.php for a list of supported timezones. Valid examples are: "America/New_York", "Europe/Berlin", "Etc/UTC".
@@ -131,7 +131,7 @@ PHPCONF_END
 
 step_13_info() { echo "PHP fpm configuration"; }
 step_13() {
-  outColor green
+  color green
   cat << FPMCONF_END
 
 cp /etc/php/7.3/fpm/pool.d/www.conf /etc/php/7.3/fpm/pool.d/librenms.conf
@@ -154,7 +154,7 @@ FPMCONF_END
 
 step_14_info() { echo "Nginx configuration"; }
 step_14() {
-  outColor green
+  color green
   cat << NGINXCONF_END
 
 server {
@@ -182,15 +182,15 @@ NGINXCONF_END
 }
 
 step_20_info() { echo "Create $toolName cron job"; }
-step_20_alias() { ALIAS="cron"; }
+step_20_alias() { echo "cron"; }
 step_20() {
-  echoseq -n " [I] Creating $lnmsCronLoc ... "
-  exe cp "${LNMS_DIR}/librenms.nonroot.cron" "$lnmsCronLoc" && echoseq "Ok" || echoseq "Nok"
+  info -n " [I] Creating $lnmsCronLoc ... "
+  exe cp "${LNMS_DIR}/librenms.nonroot.cron" "$lnmsCronLoc" && info "Ok" || info "Nok"
 }
 lnmsCronLoc="/etc/cron.d/librenms"
 
 step_22_info() { echo "Enable lnms command completion"; }
-step_22_alias() { ALIAS="cmdcompletion"; }
+step_22_alias() { echo "cmdcompletion"; }
 step_22() {
   exep 'echo -e "#!/bin/bash\nsudo -u '$toolUser' \"'$LNMS_DIR'/lnms\" \"\$@\"" > '"$lnmsLocalBin"
   exe chmod 744 "$lnmsLocalBin"
@@ -199,44 +199,44 @@ step_22() {
 lnmsLocalBin="/usr/local/bin/lnms"
 
 step_24_info() { echo "Copy logrotate config"; }
-step_24_alias() { ALIAS="logrotate"; }
+step_24_alias() { echo "logrotate"; }
 step_24() {
-  echoseq -n " [I] Creating $lnmsLogrotLoc ... "
-  exe cp "${LNMS_DIR}/misc/librenms.logrotate" "$lnmsLogrotLoc" && echoseq "Ok" || echoseq "Nok"
+  info -n " [I] Creating $lnmsLogrotLoc ... "
+  exe cp "${LNMS_DIR}/misc/librenms.logrotate" "$lnmsLogrotLoc" && info "Ok" || info "Nok"
 }
 lnmsLogrotLoc="/etc/logrotate.d/librenms"
 
 step_26_info() { echo "Install nagios plugin to enable services"; }
-step_26_alias() { ALIAS="services"; }
+step_26_alias() { echo "services"; }
 step_26() {
   exe apt install monitoring-plugins
-  echoseq
-  echoseq " [$LNMS_DIR/config.php]"
-  echoseq "\$config['show_services']           = 1;"
-  echoseq
-  echoseq " [/etc/cron.d/librenms]"
-  echoseq "  */5 * * * * librenms /opt/librenms/services-wrapper.py 1"
+  info
+  info " [$LNMS_DIR/config.php]"
+  info "\$config['show_services']           = 1;"
+  info
+  info " [/etc/cron.d/librenms]"
+  info "  */5 * * * * librenms /opt/librenms/services-wrapper.py 1"
 }
 
 step_30_info() { echo "Backup ${toolName} web direcotry"; }
-step_30_alias() { ALIAS="backup"; }
+step_30_alias() { echo "backup"; }
 step_30() {
-  echoseq " [I] Backup install directory to ${LNMS_BU_DIR}"
+  info "Backup install directory to ${LNMS_BU_DIR}"
   exe mkdir -p "$LNMS_BU_DIR"
   exep "cd \"${LNMS_DIR}\"/.. && tar czf \"${LNMS_BU_DIR}/\`date +%Y%m%d\`_${toolName}_web.tar.gz\" \"$(basename "$LNMS_DIR")\""
 }
 
 step_31_info() { echo "Backup ${toolName} database [daily|monthly(default)]"; }
-step_31_alias() { ALIAS="backupdb"; }
+step_31_alias() { echo "backupdb"; }
 step_31() {
   case "$2" in
     daily|Daily|DAILY)
-      echoseq " [I] Daily backup..."
+      info "Daily backup..."
       exep "mysqldump --single-transaction -u root ${LNMS_DB_NAME} | bzip2 -c > \"${LNMS_BU_DIR}/${toolName}_daily.sql.bz2\""
       ;;
     *)
       exe mkdir -p "$LNMS_BU_DIR/monthly"
-      echoseq " [I] Monthly backup..."
+      info "Monthly backup..."
       exep "mysqldump --single-transaction -u root ${LNMS_DB_NAME} | bzip2 -c > \"${LNMS_BU_DIR}/monthly/\`date +%Y%m%d\`_${toolName}.sql.bz2\""
       ;;
   esac
@@ -258,7 +258,7 @@ STABLE_EOF
 }
 
 step_42_info() { echo "Fix librenms permission"; }
-step_42_alias() { ALIAS="fix"; }
+step_42_alias() { echo "fix"; }
 step_42() {
   exe chown -R ${toolUser}: "$LNMS_DIR"
   exe chmod 771 "${LNMS_DIR}"
@@ -275,5 +275,5 @@ fetchPhpVersion() {
 }
 
 # Sequence Revision
-VERSION_SEQREV=12
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/mailserver.sh b/seqs/mailserver.sh
index a31e505..9fc244a 100755
--- a/seqs/mailserver.sh
+++ b/seqs/mailserver.sh
@@ -24,23 +24,23 @@ CONFIG=0
 CONFIG_FILE_NAME="${toolName}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   if [ $(id -u) -ne 0 ] ; then
     endReturn -o 1 "No root"
   fi
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
-    echoseq "     Domain: $MAS_DOMAIN"
+    info "     Domain: $MAS_DOMAIN"
   elif [ $? -eq 1 ] ; then
     # Config $CONFIG_FILE_NAME created. Needs modification first
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
   return 0
 }
 
 step_1_info() { echo "Update apt repositories"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
 }
@@ -48,7 +48,7 @@ step_1() {
 step_2_info() { echo "Install $mtaName"; }
 step_2() {
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   else
     read -p "In the following dialog chose \"Internet site\" and enter $MAS_DOMAIN as your domain. Enter to continue..."
@@ -74,11 +74,11 @@ step_4() {
 
 step_5_info() { echo "$mtaName enable submission service"; }
 step_5() {
-  echoseq -e " [I] Copy following lines...\n"
+  info -e " [I] Copy following lines...\n"
   exe cat "$mtaConfSubmission"
   exe read -rep $'\nPress Enter to open the '$mtaConfLoc'/master.cf'
   exe vi $mtaConfLoc/master.cf
-  exe echoseq
+  exe info
   exe cat "$mtaConfSmtps"
   exe read -rep $'\nPress Enter to open the '$mtaConfLoc'/master.cf'
   exe vi $mtaConfLoc/master.cf
@@ -97,7 +97,7 @@ step_6() {
   exe postconf "smtp_tls_mandatory_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1"
   exe postconf "smtp_tls_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1"
 
-  echoseq " [I] Restarting $mtaName"
+  info "Restarting $mtaName"
   exe service $mtaName restart
 }
 
@@ -112,14 +112,14 @@ step_7() {
 step_8_info() { echo "Install $mdaName"; }
 step_8() {
   exe apt install $mdaDeps
-  echoseq -e "\n [I] Installed version: $(dovecot --version)"
+  info -e "\n [I] Installed version: $(dovecot --version)"
 }
 
 step_9_info() {
   echo "Configure $mdaName"
 }
 step_9() {
-  outColor green
+  color green
   cat <<MDA_EOF
 # Configuring Mailbox Location
   [/etc/dovecot/conf.d/10-mail.conf]
@@ -205,10 +205,10 @@ step_20_info() {
   echo "Install postfixadmin and create mysql database"
   echoinfo "Virtualize mailboxes, domains and aliases by using a mysql database"
 }
-step_20_alias() { ALIAS="virtual"; }
+step_20_alias() { echo "virtual"; }
 step_20() {
   local qOpt=
-  if [ $QUIET -ne 0 ] ; then
+  if quiet ; then
     qOpt="-q"
   fi
   exe $WDIR/postfixadmin.sh ${qOpt} install
@@ -235,7 +235,7 @@ step_21() {
   for mtaFile in ${mtaMysqlFiles[@]}
   do
     eval 'mtaVar=$MAS_'${mtaFile}
-    echoseq " [I] creating ${mtaFile}.cf"
+    info "creating ${mtaFile}.cf"
     exe echo -e "$localMysqlUser\n$mtaVar" > "$mtaMysqlConfLoc/${mtaFile}.cf"
   done
 
@@ -259,7 +259,7 @@ step_22() {
   exe postconf -e "virtual_gid_maps = static:$MAS_VIRTUAL_USER_ID"
 }
 
-step_23_info() { echo "Create virtual user $MAS_VIRTUAL_USER and folder $MAS_VIRTUAL_FOLDER_BASE"; }
+step_23_info() { echo "Create virtual user ${MAS_VIRTUAL_USER:-} and folder ${MAS_VIRTUAL_FOLDER_BASE:-}"; }
 step_23() {
   exe mkdir -p "$MAS_VIRTUAL_FOLDER_BASE"
   exe groupadd --gid $MAS_VIRTUAL_USER_ID $MAS_VIRTUAL_USER
@@ -267,7 +267,7 @@ step_23() {
   exe chown -R ${MAS_VIRTUAL_USER}: "$MAS_VIRTUAL_FOLDER_BASE"
   exe chmod -R 770 "$MAS_VIRTUAL_FOLDER_BASE"
 
-  echoseq " [I] Restarting $mtaName"
+  info "Restarting $mtaName"
   exe service $mtaName restart
 }
 
@@ -335,7 +335,7 @@ step_25() {
 }
 
 step_50_info() { echo "Adding default relay host for sending mails"; }
-step_50_alias() { ALIAS="default_relay"; }
+step_50_alias() { echo "default_relay"; }
 step_50() {
   if [ ! -f "$saslPassFile" ] ; then
     exe postconf -e "relayhost = $MAS_RELAYHOST"
@@ -343,7 +343,7 @@ step_50() {
     exe postconf -e "smtp_sasl_password_maps = hash:$saslPassFile"
     addConf -s "$MAS_RELAYHOST $MAS_RELAYUSER:$MAS_RELAYPASS" "$saslPassFile"
   fi
-  echoseq " [I] Updating $saslPassFile"
+  info "Updating $saslPassFile"
   exe postmap "$saslPassFile"
 }
 saslPassFile="$mtaConfLoc/sasl_password"
@@ -352,7 +352,7 @@ step_52_info() {
   echo "Grant access for specific (local) hostnames"
   echoinfo "Workaround when local clients connect to 25 with different ips (v6)"
 }
-step_52_alias() { ALIAS="client_access"; }
+step_52_alias() { echo "client_access"; }
 step_52() {
   if [ ! -f "$mtaClientAccessLoc" ] ; then
     echo " [I] Generating $mtaClientAccessLoc"
@@ -362,7 +362,7 @@ step_52() {
     echo "      smtpd_relay_restrictions ="
     echo "          check_client_access hash:$mtaClientAccessLoc"
   fi
-  echoseq " [I] Updating $mtaClientAccessLoc"
+  info "Updating $mtaClientAccessLoc"
   exe postmap "$mtaClientAccessLoc"
 }
 mtaClientAccessLoc="$mtaConfLoc/client_access"
@@ -370,26 +370,26 @@ mtaClientAccessLoc="$mtaConfLoc/client_access"
 step_54_info() { 
   echo "Deny recipient access for listed mail addresses"
 }
-step_54_alias() { ALIAS="recipient_access"; }
+step_54_alias() { echo "recipient_access"; }
 step_54() {
   if [ ! -f "$mtaRecipientAccessLoc" ] ; then
-    echoseq " [I] Generating $mtaRecipientAccessLoc"
+    info "Generating $mtaRecipientAccessLoc"
     exep "echo \"# unwanted@${MAS_DOMAIN} 550 No mailbox. Nothing to see here.\" > \"$mtaRecipientAccessLoc\""
     echo " [I] Don't forget to add the following"
     echo "     [$mtaConfLoc/main.cf]"
     echo "      smtpd_recipient_restrictions ="
     echo "          check_recipient_access hash:$mtaRecipientAccessLoc"
   fi
-  echoseq " [I] Updating $mtaRecipientAccessLoc"
+  info "Updating $mtaRecipientAccessLoc"
   exe postmap "$mtaRecipientAccessLoc"
 }
 mtaRecipientAccessLoc="$mtaConfLoc/recipient_access"
 
 step_56_info() { echo "Add sender dependant relay with authentication"; }
-step_56_alias() { ALIAS="sender_relay"; }
+step_56_alias() { echo "sender_relay"; }
 step_56() {
   if [ ! -f "$mtaSenderRelayLoc" ] ; then
-    echoseq " [I] Generating $mtaSenderRelayLoc"
+    info "Generating $mtaSenderRelayLoc"
     exep "echo \"# user@extern.com smtp:[mail.extern.com]:587\" > \"$mtaSenderRelayLoc\""
     exe postconf -e "smtp_sender_dependent_authentication = yes"
     exe postconf -e "sender_dependent_relayhost_maps = hash:$mtaSenderRelayLoc"
@@ -402,7 +402,7 @@ step_56() {
     echo "      user@extern.com username:passwort"
     echo "     postmap $saslPassFile"
   fi
-  echoseq " [I] Updating $mtaSenderRelayLoc"
+  info "Updating $mtaSenderRelayLoc"
   exe postmap "$mtaSenderRelayLoc"
   exe postmap "$saslPassFile"
 }
@@ -412,7 +412,7 @@ step_100_info() {
   echo "Send testmail [-u SYSTEMUSER | -f FROM] [TO]"
   echoinfo "Send as current user to postmaster@\$MAS_DOMAIN by default"
 }
-step_100_alias() { ALIAS="test"; }
+step_100_alias() { echo "test"; }
 step_100() {
   shift
   local arg
@@ -443,7 +443,7 @@ step_100() {
 }
 
 step_102_info() { echo "Show mail queue"; }
-step_102_alias() { ALIAS="showqueue"; }
+step_102_alias() { echo "showqueue"; }
 step_102() {
   exe sendmail -bp
 }
@@ -452,7 +452,7 @@ step_104_info() {
   echo "Delete mail queue [ID]"
   echoinfo "Delete all queued mails if [ID] is empty"
 }
-step_104_alias() { ALIAS="delqueue"; }
+step_104_alias() { echo "delqueue"; }
 step_104() {
   shift
   local msgId="ALL"
@@ -462,5 +462,5 @@ step_104() {
   exe postsuper -d "$msgId"
 }
 
-VERSION_SEQREV=12
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/matrix-commander.sh b/seqs/matrix-commander.sh
index fb6ee47..9dbc124 100755
--- a/seqs/matrix-commander.sh
+++ b/seqs/matrix-commander.sh
@@ -17,7 +17,7 @@ SCRIPT_NAME=${SCRIPT_FILE%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## or to use sequencer api with global config file:
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
 
@@ -25,21 +25,21 @@ step_config() {
     CONFIG=1
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
 
   toolCredentialDir="$MACO_BASE_DIR/.config/matrix-commander"
   toolEncStoreDir="$MACO_BASE_DIR/.local/share/matrix-commander"
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
   ## Return of non zero value will abort the sequence
   return 0
 }
 
 step_1_info() { echo "Run $toolName"; }
-step_1_alias() { ALIAS="run"; }
+step_1_alias() { echo "run"; }
 step_1() {
   shift
   exe "$MACO_BASE_DIR/bin/python3" "$MACO_DIR/matrix-commander.py" "$@"
@@ -50,14 +50,14 @@ step_3_info() {
   echo "Send message"
   echoinfo "Each string ([MESSAGE]) is send as separate message"
 }
-step_3_alias() { ALIAS="message"; }
+step_3_alias() { echo "message"; }
 step_3() {
   shift
   step run -m "$@" 
 }
 
 step_50_info() { echo "Install $toolName dependencies"; }
-step_50_alias() { ALIAS="install"; }
+step_50_alias() { echo "install"; }
 step_50() {
   apt install $toolDeps $APTOPT
 }
@@ -91,7 +91,7 @@ dbus-python
 notify2
 NOTES_END
   exe read -p "Enter to continue..."
-  exe "$DEFAULT_EDITOR_SYSTEM" "$MACO_DIR/requirements.txt"
+  exe editor "$MACO_DIR/requirements.txt"
   exe sudo -u $MACO_USER ${MACO_BASE_DIR}/bin/pip install -r ${MACO_DIR}/requirements.txt
 }
 
@@ -99,7 +99,7 @@ step_55_info() {
   echo "Create systemd service for $toolName"
   echoinfo "(Make sure to modify the service content in the step configuration)"
 }
-step_55_alias() { ALIAS="service"; }
+step_55_alias() { echo "service"; }
 step_55() {
   local macommanderServiceLoc="/etc/systemd/system/matrix-commander.service"
   addConf -s "$MACO_SERVICE" "$macommanderServiceLoc"
@@ -107,19 +107,19 @@ step_55() {
 }
 
 step_57_info() { echo "First run to create credential file and encryption store"; }
-step_57_alias() { ALIAS="firstrun"; }
+step_57_alias() { echo "firstrun"; }
 step_57() {
   exe sudo -u "$MACO_USER" mkdir -p "$toolCredentialDir" "$toolEncStoreDir"
   exe cd "$toolCredentialDir"
   step run
   [ -e ./store ] && exe mv store "$toolEncStoreDir"
 
-  echoseq " [I] use \"$SEQ_NAME run --verify\" to verify against an existing session (like Element)" 
+  info "use \"$SEQ_NAME run --verify\" to verify against an existing session (like Element)" 
 }
 
-step_60_alias() { ALIAS="notes"; }
+step_60_alias() { echo "notes"; }
 step_60() {
-  outColor green
+  color green
   cat <<NOTES_EOF
 # Verify matrix-commander "device"
 
@@ -140,5 +140,5 @@ credentials.json - $MACO_BASE_DIR/.config/matrix-commander/credentials.json
 NOTES_EOF
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/matrix-dimension.sh b/seqs/matrix-dimension.sh
index c8821f2..3cfc4d0 100755
--- a/seqs/matrix-dimension.sh
+++ b/seqs/matrix-dimension.sh
@@ -14,36 +14,36 @@ SCRIPT_NAME=${SCRIPT_FILE%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## or to use sequencer api with global config file:
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
-  echoerr " [W] $SCRIPT_NAME is still in alpha stage"
-  echoerr "     TODO: - systemd script"
-  echoerr "           - initial config creation"
+  warning -e "$SCRIPT_NAME is still in alpha stage"
+  error -e "     TODO: - systemd script"
+  error -e "           - initial config creation"
 
   ## Return of non zero value will abort the sequence
   return 0
 }
 
 step_1_info() { echo "Install $toolName dependencies"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exep curl -sL https://deb.nodesource.com/setup_12.x \| bash -
   exe apt install $toolAptDeps $APTOPT
 }
 
 step_2_info() { echo "Setup and build"; }
-step_2_alias() { ALIAS="setup"; }
+step_2_alias() { echo "setup"; }
 step_2() {
   if [ ! -e "$SEQ_DIMENSION_DIR" ]; then
     exe mkdir -p "$SEQ_DIMENSION_DIR"
@@ -62,10 +62,10 @@ step_2() {
 }
 
 step_10_info() { echo "Start $toolName"; }
-step_10_alias() { ALIAS="start"; }
+step_10_alias() { echo "start"; }
 step_10() {
   if [ ! -e "$SEQ_DIMENSION_DIR" ]; then
-    echoerr " [E] $toolName not found ad $SEQ_DIMENSION_DIR"
+    error -e "$toolName not found ad $SEQ_DIMENSION_DIR"
     return 1;
   fi
   exe cd "$SEQ_DIMENSION_DIR"
@@ -75,5 +75,5 @@ step_10() {
   exep NODE_ENV=production node build/app/index.js
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/matrix.sh b/seqs/matrix.sh
index f83e810..00eaa69 100755
--- a/seqs/matrix.sh
+++ b/seqs/matrix.sh
@@ -25,9 +25,9 @@ CONFIG=0
 CONFIG_FILE_NAME="matrix.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   if [ "$(which lsb_release)" == "" ] ; then
-    echoerr " [W] Cannot detect OS. Assuming Raspberry Pi OS"
+    warning -e "Cannot detect OS. Assuming Raspberry Pi OS"
     osName="Raspbian"
   else
     osName=$(lsb_release -is)
@@ -35,7 +35,7 @@ step_config() {
   fi
 
   if [ "$osName" == "" ] ; then
-    echoerr " [W] Error dedecting OS. Assuming Raspberry Pi OS"
+    warning -e "Error dedecting OS. Assuming Raspberry Pi OS"
     osName="Raspbian"
   fi
 
@@ -55,14 +55,14 @@ step_config() {
 }
 
 step_1_info() { echo "Installing $toolName dependencies"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local aptOption=
 
   exe apt update
   endReturn -o $? "Updating apt repositories failed"
 
-  if [ $QUIET -ne 0 ] ; then
+  if quiet ; then
     aptOption="-y"
   else
     aptOption=""
@@ -75,7 +75,7 @@ step_1() {
 }
 
 step_2_info() { echo "Create postgres database for $toolName"; }
-step_2_alias() { ALIAS="createdb"; }
+step_2_alias() { echo "createdb"; }
 step_2() {
   readDatabaseInfos
 
@@ -92,7 +92,7 @@ step_3() {
 }
 
 step_4_info() { echo "Install $toolName"; }
-step_4_alias() { ALIAS="virtualenv"; }
+step_4_alias() { echo "virtualenv"; }
 step_4() {
   exe mkdir -p "$MATRIX_HOME"
   exe virtualenv -p python3 "${MATRIX_HOME}/env"
@@ -104,7 +104,7 @@ step_4() {
 }
 
 step_5_info() { echo "Create default configuration and folder structure"; }
-step_5_alias() { ALIAS="defaultconfig"; }
+step_5_alias() { echo "defaultconfig"; }
 step_5() {
   # Create default configuration
   exe python3 -m synapse.app.homeserver --server-name "$MATRIX_DOMAIN" --config-path homeserver.yaml --generate-config --report-stats=no
@@ -124,7 +124,7 @@ step_6() {
 }
 
 step_7_info() { echo "Create $toolName systemd service"; }
-step_7_alias() { ALIAS="systemd"; }
+step_7_alias() { echo "systemd"; }
 step_7() {
   # eval needed to expand sourced configuration variables
   local localService=`eval "echo \"$toolService\""`
@@ -156,13 +156,13 @@ WantedBy=multi-user.target"
 
 step_10_info() { 
   echo -n "Upgrade $toolName installation"
-  if [ $CONTEXT_HELP -eq 0 ] ; then
+  if ! contextHelp ; then
     echo " at $MATRIX_HOME"
   else
     echo
   fi
 }
-step_10_alias() { ALIAS="upgrade"; }
+step_10_alias() { echo "upgrade"; }
 step_10() {
   echo " [I] Upgrading $toolName"
   exe source "${MATRIX_HOME}/env/bin/activate"
@@ -180,7 +180,7 @@ step_10() {
 }
 
 step_12_info() { echo "Restart $toolName systemd service"; echo; }
-step_12_alias() { ALIAS="restart"; }
+step_12_alias() { echo "restart"; }
 step_12() {
   exe service ${toolServiceName} restart
 }
@@ -189,7 +189,7 @@ step_14_info() {
   echoinfoArgs "[IP]:8008"
   echo "Show $toolName version"
 }
-step_14_alias() { ALIAS="version"; }
+step_14_alias() { echo "version"; }
 step_14() {
   local synapseIP=localhost
   shift
@@ -208,7 +208,7 @@ step_16_info() {
   echoinfo "[OPTION]"
   echoinfo " -r : Raw json output"
 }
-step_16_alias() { ALIAS="listuser"; }
+step_16_alias() { echo "listuser"; }
 step_16() {
   adminTokenCheck
   endReturn -o $? "Admin token needed. Check $SEQ_CONFIG_FILE"
@@ -238,7 +238,7 @@ step_16() {
 }
 
 step_18_info() { echo "Create new user"; }
-step_18_alias() { ALIAS="adduser"; }
+step_18_alias() { echo "adduser"; }
 step_18() {
   exe /opt/synapse/env/bin/register_new_matrix_user -c "$MATRIX_HOME/homeserver.yaml" $toolUrlLocal
 }
@@ -247,9 +247,9 @@ step_20_info() {
   shift
   echoinfoArgs "[USER NAME]"
   echo -n "Reset user password"
-  [ $CONTEXT_EXE -ne 0 ] && echoinfo " for $1" || echo
+  contextExe && echoinfo " for $1" || echo
 }
-step_20_alias() { ALIAS="resetpw"; }
+step_20_alias() { echo "resetpw"; }
 step_20() {
   shift
   local user=
@@ -261,7 +261,7 @@ step_20() {
   fi
 
   if [ -z $user ]; then
-    echoerr "No user name provided"
+    error -e "No user name provided"
     return 1
   fi
   local pw="$("${MATRIX_HOME}/${synapseHashTool}")"
@@ -277,7 +277,7 @@ step_22_info() {
   echoinfo "[OPTION]"
   echoinfo " -r : Raw json output"
 }
-step_22_alias() { ALIAS="listrooms"; }
+step_22_alias() { echo "listrooms"; }
 step_22() {
   adminTokenCheck
   endReturn -o $? "Admin token needed. Check $SEQ_CONFIG_FILE"
@@ -313,7 +313,7 @@ step_24_info() {
   echoinfo "[OPTION]"
   echoinfo " -r : Raw json output"
 }
-step_24_alias() { ALIAS="listmember"; }
+step_24_alias() { echo "listmember"; }
 step_24() {
   adminTokenCheck
   endReturn -o $? "Admin token needed. Check $SEQ_CONFIG_FILE"
@@ -353,7 +353,7 @@ step_26_info() {
   echo "Delete rooms without local users"
   echoinfo " [IP] : default is localhost"
 }
-step_26_alias() { ALIAS="purge"; }
+step_26_alias() { echo "purge"; }
 step_26() {
   adminTokenCheck
   endReturn -o $? "Admin token needed. Check $SEQ_CONFIG_FILE"
@@ -384,7 +384,7 @@ step_28_info() {
   echoinfoArgs "<ROOM ID> [IP]:8008"
   echo "Delete room"
 }
-step_28_alias() { ALIAS="deleteroom"; }
+step_28_alias() { echo "deleteroom"; }
 step_28() {
   adminTokenCheck
   endReturn -o $? "Admin token needed. Check $SEQ_CONFIG_FILE"
@@ -430,13 +430,13 @@ EOF
 }
 
 step_30_info() { echoinfoArgs "[DATABASE]"; echo "Debloat postgres"; echo; }
-step_30_alias() { ALIAS="debloat"; }
+step_30_alias() { echo "debloat"; }
 step_30() {
   shift
   local pgVerboseReId=" (VERBOSE) "
   local pgVerboseVac=" VERBOSE"
 
-  if [ $VERBOSE == 0 ]; then
+  if ! verbose; then
     pgVerboseReId=" "
     pgVerboseVac=""
   fi
@@ -460,7 +460,7 @@ step_30() {
 }
 
 step_50_info() { echo "Drop postgres database for $toolName"; }
-step_50_alias() { ALIAS="dropdb"; }
+step_50_alias() { echo "dropdb"; }
 step_50() {
   readDatabaseInfos
 
@@ -469,7 +469,7 @@ step_50() {
 }
 
 step_52_info() { echo "Backup postgres database"; }
-step_52_alias() { ALIAS="backupdb"; }
+step_52_alias() { echo "backupdb"; }
 step_52() {
   local DELYEAR=$(($(date +%Y)-2))
   if [ ! -s ~/.pgpass ] ; then
@@ -484,7 +484,7 @@ toolDbBackupFolder=/root/backupdb
 
 
 step_54_info() { echo "Postgres database restore"; }
-step_54_alias() { ALIAS="restoredb"; }
+step_54_alias() { echo "restoredb"; }
 step_54() {
   echo " [I] Postgres database restore procedure"
   echo "1. Create a empty postgres database first (step 4)"
@@ -502,7 +502,7 @@ step_54() {
 }
 
 step_56_info() { echo "$toolName migration notes"; }
-step_56_alias() { ALIAS="migrate"; }
+step_56_alias() { echo "migrate"; }
 step_56() {
   echo " [I] Backup database"
   echo "       ./postgres.sh backupdb synapse"
@@ -552,12 +552,12 @@ toolScript() {
 # End step if no admin access token is configured
 adminTokenCheck() {
   if [ -z "$MATRIX_ACCESS" ] ; then
-    [ $QUIET -eq 0 ] && read -s -p "Please enter admin access tocken: " MATRIX_ACCESS
+    interactive && read -s -p "Please enter admin access tocken: " MATRIX_ACCESS
     # return 1 if it is still empty
     [ -z "$MATRIX_ACCESS" ] && return 1
   fi
   return 0
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/matterbridge.sh b/seqs/matterbridge.sh
index b211ef0..9538860 100755
--- a/seqs/matterbridge.sh
+++ b/seqs/matterbridge.sh
@@ -36,9 +36,9 @@ toolServiceLoc="/etc/systemd/system/${toolName}.service"
 readonly goDir="/usr/local/go"
 readonly goDownLoc="/tmp/go.tar.gz"
 
-step_config() {
+seq_config() {
   if [ -z $toolVersion ] ; then
-    echoerr " [E] Couldn't determine latest version of $toolName"
+    error -e "Couldn't determine latest version of $toolName"
   fi
 }
 
@@ -46,7 +46,7 @@ step_1_info() {
   echo "Downloading $toolName version ${toolVersion} to ${toolLoc} from:"
   echoinfo "$toolDownload"
 }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   step upgrade
   endReturn -o $? "Download failed"
@@ -74,9 +74,9 @@ step_4() {
 }
 
 step_5_info() { echo "Show configuration notes"; }
-step_5_alias() { ALIAS="notes"; }
+step_5_alias() { echo "notes"; }
 step_5() {
-  outColor green
+  color green
   cat <<NOTES_END
 
 # Sample configuration
@@ -87,7 +87,7 @@ NOTES_END
 }
 
 step_10_info() { echo "Backup existing executable"; }
-step_10_alias() { ALIAS="backup"; }
+step_10_alias() { echo "backup"; }
 step_10() {
   if [ -f "$toolLoc" ] ; then
     local toolBackup=
@@ -97,8 +97,8 @@ step_10() {
       toolBackup="${toolDir}/${toolName}_bu"
     fi
     exe service ${toolName} stop >>/dev/null 2>&1
-    echoseq -n " [I] Backing up existing executable to ${toolBackup}..."
-    exe cp -ar "$toolLoc" "$toolBackup" && echoseq "ok"
+    info -n " [I] Backing up existing executable to ${toolBackup}..."
+    exe cp -ar "$toolLoc" "$toolBackup" && info "ok"
   fi
 }
 versionNow=$([ ! -z $(which ${toolName}) ] && ${toolName} --version | sed 's/.*version: \([0-9.]\+\).*/\1/')
@@ -116,7 +116,7 @@ step_12_info() {
   fi
   echo
 }
-step_12_alias() { ALIAS="upgrade"; }
+step_12_alias() { echo "upgrade"; }
 step_12() {
   step backup
   exe wget -O "$toolLoc" $toolDownload
@@ -134,7 +134,7 @@ step_30_info() {
   echoinfo "   --arch,  -a  :  armhf(default), arm64"
   echoinfo "                   CPU architecture for downloading go sources"
 }
-step_30_alias() { ALIAS="build"; }
+step_30_alias() { echo "build"; }
 step_30() {
   shift
   local goVer="$(curl --silent -L https://go.dev/doc/devel/release | \
@@ -151,7 +151,7 @@ step_30() {
 
   # Download latest go
   if [ ! -e "${goDir}" ] ; then
-    echoseq "Download go${goVer}: ${goDownUrl}"
+    info "Download go${goVer}: ${goDownUrl}"
     exe wget -O "${goDownLoc}" ${goDownUrl}
     endReturn -o $? "Download ${goVer} failed"
     exe tar -C "$(dirname -- "${goDir}")" -xzf "${goDownLoc}"
@@ -193,7 +193,7 @@ step_32() {
 }
 
 # Sequence Revision
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 
 # Path to sequencer
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/mayan-edms.sh b/seqs/mayan-edms.sh
index fc2362c..7eaef2b 100755
--- a/seqs/mayan-edms.sh
+++ b/seqs/mayan-edms.sh
@@ -20,7 +20,7 @@ SCRIPT_NAME=${SCRIPT_FILE%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## or to use sequencer api with global config file:
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
@@ -30,18 +30,18 @@ step_config() {
     postgresPass="$MAYAN_DBPASS"
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
   ## Return of non zero value will abort the sequence
   return 0
 }
 
 step_1_info() { echo "Install libreoffice without gui"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt --no-install-recommends install libreoffice -y
@@ -69,7 +69,7 @@ step_3() {
 }
 
 step_4_info() { echo "Create postgres database for $toolName"; }
-step_4_alias() { ALIAS="createdb"; }
+step_4_alias() { echo "createdb"; }
 step_4() {
   readDatabaseInfos
 
@@ -91,7 +91,7 @@ step_5() {
 }
 
 step_6_info() { echo "Supervisord configuration for $toolName"; }
-step_6_alias() { ALIAS="supervisorconf"; }
+step_6_alias() { echo "supervisorconf"; }
 step_6() {
   addConf -c "" "$supervisordConfLoc"
   toolScript "platformtemplate supervisord > ${supervisordConfLoc}"
@@ -126,7 +126,7 @@ step_10_info() {
   echoinfo "  super  :  update also supervisor configuration"
   echoinfo "            (manual redis password update may be needed)"
 }
-step_10_alias() { ALIAS="upgrade"; }
+step_10_alias() { echo "upgrade"; }
 step_10() {
   shift # don't need the step number
   step upgradepip
@@ -149,12 +149,12 @@ uninstallRemovalsLoc="/tmp/removals.txt"
 
 
 step_13_info() { echo "$toolName management script"; }
-step_13_alias() { ALIAS="manage"; }
+step_13_alias() { echo "manage"; }
 step_13() {
   shift
   if [ -z "$1" ] || [ "$1" == "" ] ; then
     echo -n "Command (empty for help): "
-    if [ $DRY != 0 ]; then
+    if dry; then
       echo " dryrun"
     else
       read command 
@@ -166,14 +166,14 @@ step_13() {
 }
 
 step_15_info() { echo "Upgrade python pip"; }
-step_15_alias() { ALIAS="upgradepip"; }
+step_15_alias() { echo "upgradepip"; }
 step_15()
 {
   exe ${toolRoot}/bin/pip install --upgrade pip
 }
 
 step_20_info() { echo "Backup postgres database to media folder"; }
-step_20_alias() { ALIAS="backupdb"; }
+step_20_alias() { echo "backupdb"; }
 step_20() {
   local DELYEAR=$(($(date +%Y)-2))
   if [ ! -s ~/.pgpass ] ; then
@@ -188,7 +188,7 @@ toolDbBackupFolder=${toolMediaFolder}/backupdb
 
 
 step_22_info() { echo "Postgres database restore"; }
-step_22_alias() { ALIAS="restoredb"; }
+step_22_alias() { echo "restoredb"; }
 step_22() {
   echo " [I] Postgres database restore procedure"
   echo "1. Create a empty postgres database first (step 4)"
@@ -218,7 +218,7 @@ readDatabaseInfos() {
     read -s -p "Enter postgres password: " postgresPass
     endCheckEmpty postgresPass "password"
   fi
-  echoseq
+  info
 }
 
 # Needs readDatabaseInfos() to execute some commands
@@ -233,5 +233,5 @@ toolScript() {
   ${toolRoot}/bin/mayan-edms.py $*"
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/motioneye.sh b/seqs/motioneye.sh
index 007fb35..2b0f394 100755
--- a/seqs/motioneye.sh
+++ b/seqs/motioneye.sh
@@ -18,7 +18,7 @@ CONFIG=0
 #CONFIG_FILE_NAME="${toolName}.cfg"
 #CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## e.g. to source a config file manually:
   #. "$CONFIG_FILE"
   ## or to use sequencer api:
@@ -27,7 +27,7 @@ step_config() {
   #  CONFIG=1
   #fi
   if [ "$(which lsb_release)" == "" ] ; then
-    echoerr " [W] Cannot detect OS. Assuming Ubuntu"
+    warning -e "Cannot detect OS. Assuming Ubuntu"
     SEQ_OSNAME="Ubuntu"
   else
     SEQ_OSNAME=$(lsb_release -is)
@@ -35,7 +35,7 @@ step_config() {
   fi
 
   if [ "$SEQ_OSNAME" == "" ] ; then
-    echoerr " [W] Error dedecting OS. Assuming Ubuntu"
+    warning -e "Error dedecting OS. Assuming Ubuntu"
     SEQ_OSNAME="Ubuntu"
   fi
 
@@ -43,20 +43,20 @@ step_config() {
 }
 
 step_1_info() { echo "Install $toolName dependencies"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local aptOption=
 
   local pyVersion=$(python -V 2>&1)
   if [[ ! "$pyVersion" =~ \ 2\.[7-9]+ ]] ; then
-    echoerr " [E] Motioneye requires python version 2.7 but $pyVersion was found."
+    error -e "Motioneye requires python version 2.7 but $pyVersion was found."
     return 1
   fi
 
   exe apt update
   endReturn -o $? "Updating apt repositories failed"
 
-  if [ $QUIET -ne 0 ] ; then
+  if quiet ; then
     aptOption="-y"
   else
     aptOption=""
@@ -96,7 +96,7 @@ step_3() {
 }
 
 step_4_info() { echo "Upgrade python pip"; }
-step_4_alias() { ALIAS="upgradepip"; }
+step_4_alias() { echo "upgradepip"; }
 step_4()
 {
   exe pip install --upgrade pip
@@ -138,7 +138,7 @@ motioneyeServiceSource="/usr/local/share/motioneye/extra/motioneye.systemd-unit-
 motioneyeServiceTarget="/etc/systemd/system/motioneye.service"
 
 step_20_info() { echo "Upgrade $toolName"; }
-step_20_alias() { ALIAS="upgrade"; }
+step_20_alias() { echo "upgrade"; }
 step_20() {
   step "upgradepip"
   exe pip install motioneye --upgrade
@@ -146,5 +146,5 @@ step_20() {
   exe systemctl restart motioneye
 }
 
-VERSION_SEQREV=11
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/mysql.sh b/seqs/mysql.sh
index 52ccfc2..cf46402 100755
--- a/seqs/mysql.sh
+++ b/seqs/mysql.sh
@@ -14,7 +14,7 @@ step_1_info() {
   echoinfo "$databasePackages"
   echoinfo "(Consider step \"latest\" first to setup official repository with the latest version)"
 }
-step_1_alias() { ALIAS=install; }
+step_1_alias() { echo install; }
 step_1() {
   exe apt update
   exe apt install $databasePackages
@@ -47,7 +47,7 @@ table_definition_cache=1400
 #innodb_force_recovery=6"
 
 step_8_info() { echo "Setup ubuntu $databaseName repository"; }
-step_8_alias() { ALIAS="latest"; }
+step_8_alias() { echo "latest"; }
 step_8() {
   exe apt install curl
   exep "curl -sS https://downloads.mariadb.com/MariaDB/mariadb_repo_setup | sudo bash -s -- --skip-maxscale --skip-tools"
@@ -64,7 +64,7 @@ step_10_info() {
   echoinfo "                                 Manual password entry for non existing user"
   echoinfo "   --remote, -r                : ip of allowed remote host"
 }
-step_10_alias() { ALIAS="createdb"; }
+step_10_alias() { echo "createdb"; }
 step_10() {
   local arg
   local dbOption=
@@ -117,7 +117,7 @@ step_11_info() {
   echoinfo "                   with manual password entry for non existing user"
   echoinfo "   --remote, -r  : ip of allowed remote host"
 }
-step_11_alias() { ALIAS="createuser"; }
+step_11_alias() { echo "createuser"; }
 step_11() {
   local arg
 
@@ -150,11 +150,11 @@ step_11() {
 
   if ! echo "SELECT COUNT(*) FROM mysql.user WHERE user = '$dbUser' AND host = '$dbRemote';" | mysql | grep 1 &>/dev/null; then
     # User does not exist
-    if [ $DRY -eq 0 ]; then
+    if ! dry; then
       read -s -p "Enter mysql user password: " dbPass
       endCheckEmpty dbPass "password"
     else
-      echoseq "Enter mysql password: ...skipped..."
+      info "Enter mysql password: ...skipped..."
     fi
     exe mysql -u root -e 'CREATE USER '"'"$dbUser"'"'@'"'"$dbRemote"'"' IDENTIFIED BY '"'"$dbPass"'"';'
     endReturn -o $? "Error creating mysql user"
@@ -169,7 +169,7 @@ step_12_info() {
   echoinfo "   --user, -u      : user name"
   echoinfo "   --remote, -r    : ip of allowed remote host"
 }
-step_12_alias() { ALIAS="grant"; }
+step_12_alias() { echo "grant"; }
 step_12() {
   local arg
 
@@ -206,7 +206,7 @@ step_14_info() {
   echoinfo "   --user, -u    : user name"
   echoinfo "   --remote, -r  : ip of allowed remote host"
 }
-step_14_alias() { ALIAS="revokeall"; }
+step_14_alias() { echo "revokeall"; }
 step_14() {
   local arg
 
@@ -231,14 +231,14 @@ step_14() {
 }
 
 step_30_info() { echo "List mysql databases"; }
-step_30_alias() { ALIAS="listdb"; }
+step_30_alias() { echo "listdb"; }
 step_30() {
   exe mysql -u root -e 'SHOW DATABASES;'
   echo -e "\nDrop userdb by: mysql -u root -e 'DROP DATABASE userdb;'"
 }
 
 step_32_info() { echo "List mysql user"; }
-step_32_alias() { ALIAS="listuser"; }
+step_32_alias() { echo "listuser"; }
 step_32() {
   exe mysql -u root -e 'SELECT User, Host FROM mysql.user;'
   echo -e "\nDrop dbuser by: mysql -u root -e 'DROP USER dbuser@localhost;'"
@@ -251,7 +251,7 @@ step_34_info() {
   echoinfo "   --user, -u      : user name"
   echoinfo "   --remote, -r    : ip of allowed remote host"
 }
-step_34_alias() { ALIAS="listprivileges"; }
+step_34_alias() { echo "listprivileges"; }
 step_34() {
   local arg
 
@@ -276,7 +276,7 @@ step_36_info() {
   echoinfoArgs "[DATABASE_NAME]"
   echo "Size of database"
 }
-step_36_alias() { ALIAS="sizedb"; }
+step_36_alias() { echo "sizedb"; }
 step_36() {
   if [ -z "$2" ]; then
     echo "Please provide a database name. e.g. $0 sizedb mydb_db"
@@ -293,17 +293,17 @@ step_50_info() {
   echoinfoArgs "<DATABASE NAME> <TARGET DIR>"
   echo "Backup (dump) a mysql database"
 }
-step_50_alias() { ALIAS="backup"; }
+step_50_alias() { echo "backup"; }
 step_50() {
   shift # step number not used
   if [ -z $1 ] ; then
-    echoerr " [E] No database name provided"
+    error -e "No database name provided"
     return 1
   fi
   local dbName="$1"
   local buTarget="$2"
   if [ -z "$2" ] ; then
-    echoerr " [W] No target directory provided. Using home of current user"
+    warning -e "No target directory provided. Using home of current user"
     buTarget="$HOME"
   elif [ ! -e "$2" ]; then
     endReturn -o 1 -f "$2 does not exist"
@@ -315,7 +315,7 @@ step_50() {
 }
 
 step_52_info() { echo "Restore a mysql database"; }
-step_52_alias() { ALIAS="restore"; }
+step_52_alias() { echo "restore"; }
 step_52() {
   echo "Restore with:"
   echo "  mysql -e \"DROP DATABASE nextcloud_db\""
@@ -340,5 +340,5 @@ readDatabaseInfos() {
   echo
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/nextcloud.sh b/seqs/nextcloud.sh
index 4213058..1b52f9a 100755
--- a/seqs/nextcloud.sh
+++ b/seqs/nextcloud.sh
@@ -13,7 +13,7 @@ sq_config=0
 sq_configFileName="${toolName}.cfg"
 sq_configFileTemplate="$sq_dir/${sq_configFileName}.example"
 
-step_config() {
+seq_config() {
   ## or to use sequencer api:
   initSeqConfig "$sq_configFileName" "$sq_configFileTemplate"
   if [ $? -eq 0 ] ; then
@@ -26,7 +26,7 @@ step_1_info() {
   echoinfoArgs "[OCC ARGS]"
   echo "Execute occ command"
 }
-step_1_alias() { ALIAS="occ"; }
+step_1_alias() { echo "occ"; }
 step_1() {
   shift
 
@@ -34,10 +34,10 @@ step_1() {
 }
 
 step_20_info() { echo "Upgrade $toolName on command line to latest version of selected release channel"; }
-step_20_alias() { ALIAS="upgrade"; }
+step_20_alias() { echo "upgrade"; }
 step_20() {
   if [ $sq_config -eq 0 ] ; then
-    echoerr " [E] No configuration found to determine installation directory"
+    error -e "No configuration found to determine installation directory"
     return 1
   fi
   exe cd "$sc_ncInstallDir"
@@ -46,7 +46,7 @@ step_20() {
 ncInstaller="updater/updater.phar"
 
 step_102_info() { echoinfoArgs "<NC DATABASE> <IPV4 ADDRESS>"; echo "Delete IP from bruteforce table"; }
-step_102_alias() { ALIAS="bruteforceRemoveIP"; }
+step_102_alias() { echo "bruteforceRemoveIP"; }
 step_102() {
   shift
   local ncdb=
@@ -54,7 +54,7 @@ step_102() {
   local ipregex='^[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}$'
 
   if [ -z $1 ] ; then
-    echoerr " [E] No database provided"
+    error -e "No database provided"
     if [ -f "${sq_dir}/mysql.sh" ] ; then
       echo " [I] Available mysql databases:"
       "${sq_dir}/mysql.sh" -qq listdb
@@ -67,7 +67,7 @@ step_102() {
   if [[ "$2" =~ $ipregex ]] ; then
     ip="$2"
   else
-    echoerr " [E] No valid IP:PORT detected: $2"
+    error -e "No valid IP:PORT detected: $2"
     return 1
   fi
 
@@ -76,29 +76,29 @@ step_102() {
 }
 
 step_104_info() { echoinfoArgs "<USER>"; echo "Reset and rescan the music library in the background for one user"; }
-step_104_alias() { ALIAS="audioreset"; }
+step_104_alias() { echo "audioreset"; }
 step_104() {
   shift
   local ncUser=$1
 
   if [ -z "$ncUser" ] ; then
-    echoerr " [E] Reset only for single user"
+    error -e "Reset only for single user"
     return 1
   fi
 
   exep "${localOcc[@]} audioplayer:reset $ncUser > /var/log/ncAudioRescan.log"
-  echoseq " [I] Rescan audioplayer database for user $ncUser"
+  info "Rescan audioplayer database for user $ncUser"
   exep "${localOcc[@]} audioplayer:scan -vvvv $ncUser >> /var/log/ncAudioRescan.log &"
 }
 
 step_106_info() { echoinfoArgs "<USER>"; echo "Scan the music library"; }
-step_106_alias() { ALIAS="audioscan"; }
+step_106_alias() { echo "audioscan"; }
 step_106() {
   shift
   local ncUser=$1
 
   if [ -z "$ncUser" ] ; then
-    echoerr " [E] Reset only for single user"
+    error -e "Reset only for single user"
     return 1
   fi
 
@@ -106,22 +106,22 @@ step_106() {
 }
 
 step_110_info() { echo "Reset picture preview folder"; }
-step_110_alias() { ALIAS="resetpreview"; }
+step_110_alias() { echo "resetpreview"; }
 step_110() {
   if [ -e "${sc_ncDataDir}" ]; then
     exe rm -rf "${sc_ncDataDir}/appdata_"*"/preview/"*
 
-    echoseq " [I] Rescan app data folder"
+    info "Rescan app data folder"
     exep "${localOcc[@]} files:scan-app-data &"
   else
-    echoerr " [E] Nextcloud data direcotry $sc_ncDataDir not found"
+    error -e "Nextcloud data direcotry $sc_ncDataDir not found"
     return 1
   fi
 }
 
-step_200_alias() { ALIAS="notes"; }
+step_200_alias() { echo "notes"; }
 step_200() {
-  outColor green
+  color green
   cat<<NOTES_END
   # Recommended preview settings
     [$sc_ncInstallDir/config/config.php]
@@ -136,5 +136,5 @@ occ config:app:set preview jpeg_quality --value="60"
 NOTES_END
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/olivetin.sh b/seqs/olivetin.sh
index c718d1b..10fea7b 100755
--- a/seqs/olivetin.sh
+++ b/seqs/olivetin.sh
@@ -16,7 +16,7 @@ SCRIPT_NAME=${SCRIPT_FILE%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## or to use sequencer api with global config file:
   #initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
 
@@ -26,18 +26,18 @@ step_config() {
   #  CONFIG=1
   #else
   #  # End if no configuration file exists
-  #  [ $DRY -eq 0 ] && return -1
+  #  dry || return -1
   #fi
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
   ## Return of non zero value will abort the sequence
   return 0
 }
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   downloadLatest
 
@@ -72,5 +72,5 @@ tempDown="/tmp/olivetin"
 tempInstall="$tempDown/olivetin.deb"
 
 
-VERSION_SEQREV=13
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/onlyoffice.sh b/seqs/onlyoffice.sh
index d14f228..bdf50d6 100755
--- a/seqs/onlyoffice.sh
+++ b/seqs/onlyoffice.sh
@@ -25,7 +25,7 @@ SCRIPT_NAME=${SCRIPT_FILE%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## Called once before executing steps.
   ## e.g. to source a config file manually:
   #. "$CONFIG_FILE"
@@ -39,11 +39,11 @@ step_config() {
     CONFIG=1
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return -1
+    dry || return -1
   fi
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
   dockerDnsEntry="DOCKER_OPTS=\"--dns $dockerDns1 --dns $dockerDns2\""
 
@@ -52,7 +52,7 @@ step_config() {
 }
 
 step_1_info() { echo "Install Docker dependencies"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install $dockerDeps $APTOPT
@@ -74,7 +74,7 @@ step_2() {
 step_3_info() { echo "Install latest Docker version"; }
 step_3() {
   # Install the latest version
-  if [ $QUIET -ne 0 ] ; then
+  if quiet ; then
     aptOption="-y"
   else
     aptOption=""
@@ -90,7 +90,7 @@ step_4() {
   exe sed -i "s/\(^#DOCKER_OPTS=.*\)$/#\1\n${dockerDnsEntry}/" "$dockerDefaultConf"
   exep "grep \"${dockerDns1}\" \"$dockerDefaultConf\" >>/dev/null"
   if [ $? -ne 0 ] ; then
-    echoerr " [W] Docker dns entry could not be changed"
+    warning -e "Docker dns entry could not be changed"
   fi
 }
 
@@ -100,7 +100,7 @@ step_5_info() {
   echoinfo "If [SECRET] is empty, user input will be available if not run --quiet."
   echoinfo "$toolName will be run unsecured if no secret was provied."
 }
-step_5_alias() { ALIAS="startoo"; }
+step_5_alias() { echo "startoo"; }
 step_5() {
   local options=
   local secret=
@@ -109,7 +109,7 @@ step_5() {
     secret="$2"
   elif [ ! -z "$dockerSecret" ]; then
     secret="$dockerSecret" 
-  elif [ $QUIET -eq 0 ] ; then
+  elif interactive ; then
     exe read -s -p "JWT Secret: " secret
   fi
 
@@ -124,7 +124,7 @@ step_5() {
       -v /app/onlyoffice/DocumentServer/lib:/var/lib/onlyoffice \
       -v /app/onlyoffice/DocumentServer/db:/var/lib/postgresql "${dockerImageName}"
   else
-    echoerr " [W] Running $toolName without JWT (JSON Web Tokens)"
+    warning -e "Running $toolName without JWT (JSON Web Tokens)"
     exe docker run -i -t -d -p ${onlyOfficePort}:80 --restart=always "${dockerImageName}"
   fi
 
@@ -132,7 +132,7 @@ step_5() {
 }
 
 step_7_info() { echo "Upgrade $toolName to latest version"; }
-step_7_alias() { ALIAS="upgrade"; }
+step_7_alias() { echo "upgrade"; }
 step_7() {
   # get container ID
   local containerId=$(docker ps -aqf ancestor="$dockerImageName")
@@ -140,7 +140,7 @@ step_7() {
     exe docker stop $containerId
     exe docker rm $containerId
   else
-    echoerr " [W] No $toolName Docker container found"
+    warning -e "No $toolName Docker container found"
   fi
   exe docker pull $dockerImageName
   endReturn -o $? "Error getting $toolName Docker update"
@@ -149,7 +149,7 @@ step_7() {
 }
 
 step_10_info() { echo "List running Docker container"; }
-step_10_alias() { ALIAS="ls"; }
+step_10_alias() { echo "ls"; }
 step_10() {
   exe docker container ls
   echo
@@ -162,7 +162,7 @@ step_12_info() {
   echo "Clean unused Docker data"
   echoinfo "(unused containers, dangling images, networks, build cache and volumes)"
 }
-step_12_alias() { ALIAS="prune"; }
+step_12_alias() { echo "prune"; }
 step_12() {
   exe docker system df
   exe docker system prune
@@ -170,13 +170,13 @@ step_12() {
 }
 
 step_100_info() { echo "Uninstall Docker"; }
-step_100_alias() { ALIAS="uninstall"; }
+step_100_alias() { echo "uninstall"; }
 step_100() {
   exe apt-get purge docker-ce
 }
 
 step_102_info() { echo "Purge images, containers, volumes, or customized configuration files"; }
-step_102_alias() { ALIAS="purge"; }
+step_102_alias() { echo "purge"; }
 step_102() {
   exe read -p "Are you sure y/[n]? " answer
   case $answer in
@@ -190,5 +190,5 @@ step_102() {
   esac
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/openvpn.sh b/seqs/openvpn.sh
index c62524c..6a85b91 100755
--- a/seqs/openvpn.sh
+++ b/seqs/openvpn.sh
@@ -16,7 +16,7 @@ CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 CONFIG_DIR="$WDIR/$SCRIPT_NAME"
 
-step_config() {
+seq_config() {
   #echo "Called once before executing steps."
   ## e.g. to source a config file manually:
   #. "$CONFIG_FILE"
@@ -28,14 +28,14 @@ step_config() {
   #  CONFIG=1
   #else
   #  # End if no configuration file exists
-  #  [ $DRY -eq 0 ] && return -1
+  #  dry || return -1
   #fi
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
   return 0
 }
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install $toolDeps $APTOPT
@@ -45,15 +45,15 @@ step_2_info() { echo "Install customized helper scripts to $toolUserScriptsLoc";
 step_2() {
   exep "mkdir \"$toolUserScriptsLoc\" 2>>/dev/null"
   [ $? -ne 0 ] && \
-    echoseq " [W] $toolUserScriptsLoc already exists. Not overwriting existing files."
+    warning "$toolUserScriptsLoc already exists. Not overwriting existing files."
   exe cp -n "$CONFIG_DIR"/* "$toolUserScriptsLoc"
 }
 
 step_10_info() { echo "Open openvpn system start configuration"; }
-step_10_alias() { ALIAS="default"; }
+step_10_alias() { echo "default"; }
 step_10() {
   exe vi "$toolDefaultConf"
 }
 
-VERSION_SEQREV=12
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/paperless.sh b/seqs/paperless.sh
index 9d4f60e..42fe2ef 100755
--- a/seqs/paperless.sh
+++ b/seqs/paperless.sh
@@ -27,6 +27,6 @@ step_4() {
   fi
 }
 
-VERSION_SEQREV=3
+readonly sqr_minVersion=16
 
 . sequencer.sh
diff --git a/seqs/piwigo.sh b/seqs/piwigo.sh
index 0a64312..30ee7bc 100755
--- a/seqs/piwigo.sh
+++ b/seqs/piwigo.sh
@@ -15,17 +15,17 @@ SCRIPT_NAME=${SCRIPT_NAME%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
   else
-    [ $DRY -eq 0 ] && return 1
+    dry || return 1
   fi
 }
 
 step_30_info() { echo "Backup ${toolName} web direcotry"; }
-step_30_alias() { ALIAS="backup"; }
+step_30_alias() { echo "backup"; }
 step_30() {
   exep "cd \"${PIWI_DIR}\"/.. && tar czf \"${PIWI_BU_DIR}/\`date +%Y%m%d\`_${toolName}_web.tar.gz\" --exclude=\"${toolName}/network/*\" --exclude=\"${toolName}/_data/i/*\" \"$(basename "$PIWI_DIR")\""
 }
@@ -34,19 +34,19 @@ step_31_info() {
   echoinfoArgs "[daily|monthly(default]"
   echo "Backup ${toolName} database"
 }
-step_31_alias() { ALIAS="backupdb"; }
+step_31_alias() { echo "backupdb"; }
 step_31() {
   case "$2" in
     daily|Daily|DAILY)
-      [ $QUIET -ne 2 ] && echo " [I] Daily backup..."
+      silent || echo " [I] Daily backup..."
       exep "mysqldump --single-transaction -u root ${PIWI_DB_NAME} | bzip2 -c > \"${PIWI_BU_DIR}/${toolName}_daily.sql.bz2\""
       ;;
     *)
-      [ $QUIET -ne 2 ] && echo " [I] Monthly backup..."
+      silent || echo " [I] Monthly backup..."
       exep "mysqldump --single-transaction -u root ${PIWI_DB_NAME} | bzip2 -c > \"${PIWI_BU_DIR}/monthly/\`date +%Y%m%d\`_${toolName}.sql.bz2\""
       ;;
   esac
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/pixelfed.sh b/seqs/pixelfed.sh
index b70ce53..07e0059 100755
--- a/seqs/pixelfed.sh
+++ b/seqs/pixelfed.sh
@@ -6,7 +6,7 @@ toolDeps="composer jpegoptim php7.3-bcmath php-imagick"
 toolPath="/var/www/pixelfed"
 
 step_1_info() { echo "Updating apt"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
 }
@@ -126,7 +126,7 @@ Environment=
 WantedBy=multi-user.target"
 
 step_8_info() { echo "Create scheduler cron job"; }
-step_8_alias() { ALIAS="scheduler"; }
+step_8_alias() { echo "scheduler"; }
 step_8() {
   addConf -s "$schedulerCmd" "$schedulerCron"
 }
@@ -197,7 +197,7 @@ location ~ /\\.(?!well-known).* {
 }"
 
 step_20_info() { echo "Reload configuration (.env)"; }
-step_20_alias() { ALIAS="newenv"; }
+step_20_alias() { echo "newenv"; }
 step_20() {
   exe cd $toolPath
   exe php artisan config:cache
@@ -205,17 +205,17 @@ step_20() {
 }
 
 step_22_info() { echo "Create new user"; }
-step_22_alias() { ALIAS="createuser"; }
+step_22_alias() { echo "createuser"; }
 step_22() {
   exe cd $toolPath
   exe php artisan user:create
 }
 
 step_24_info() { echo "Checkout to dev branch. Losing local changes!"; }
-step_24_alias() { ALIAS="forcedev"; }
+step_24_alias() { echo "forcedev"; }
 step_24() {
   exe read -p "Are you sure: y/[n]? " answer
-  if [ $DRY -eq 0 ] ; then
+  if ! dry ; then
     case $answer in
       [yY])
         ;;
@@ -232,7 +232,7 @@ step_24() {
 }
 
 step_100_info() { echo "Upgrade \"${toolPath}\" to supported tag $toolTag"; }
-step_100_alias() { ALIAS="upgrade"; }
+step_100_alias() { echo "upgrade"; }
 step_100() {
   exe cd $toolPath
   exe git pull origin $toolTag
@@ -242,7 +242,7 @@ step_100() {
 }
 
 step_101_info() { echo "Recommended post update procedure"; }
-step_101_alias() { ALIAS="postupdate"; }
+step_101_alias() { echo "postupdate"; }
 step_101() {
   exe cd $toolPath
   exe composer install
@@ -261,7 +261,7 @@ step_101() {
 
 # Src: https://docs.pixelfed.org/running-pixelfed/troubleshooting.html
 step_102_info() { echo "Fix if horizon services is running but not showing the administration interface"; }
-step_102_alias() { ALIAS="fixhorizon"; }
+step_102_alias() { echo "fixhorizon"; }
 step_102() {
   exe cd $toolPath
   exe php artisan package:discover
@@ -272,7 +272,7 @@ step_102() {
 }
 
 # Sequence Revision
-VERSION_SEQREV=7
+readonly sqr_minVersion=16
 
 # Path to sequencer
 . sequencer.sh
diff --git a/seqs/postfixadmin.sh b/seqs/postfixadmin.sh
index f17b763..883dc7c 100755
--- a/seqs/postfixadmin.sh
+++ b/seqs/postfixadmin.sh
@@ -17,7 +17,7 @@ CONFIG=0
 CONFIG_FILE_NAME="${toolName}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     echo "     ${toolName} path:   ${PFA_WEB_LOC}"
@@ -33,12 +33,12 @@ step_1_info() {
   echo "Install $toolName dependencies:"
   echoinfo "$localDeps"
 }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   # eval needed to expand sourced configuration variables
   local localDeps=`eval "echo \"$toolPhpDeps\""`
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   fi
   exe apt update
@@ -51,10 +51,10 @@ step_2() {
 }
 
 step_3_info() { echo "Install fetchmail"; }
-step_3_alias() { ALIAS="install_fetchmail"; }
+step_3_alias() { echo "install_fetchmail"; }
 step_3() {
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   fi
   exe apt install $fetchmailDeps $aptOpt
@@ -81,7 +81,7 @@ step_6_info() {
   echo "Create postfixadmin fetchmail systemd timer and reduce syslog entries"
   echoinfo "Needs to start after the mysql service"
 }
-step_6_alias() { ALIAS="timer"; }
+step_6_alias() { echo "timer"; }
 step_6() {
   # eval needed to expand sourced configuration variables
   local localService=`eval "echo \"$fetchPluginService\""`
@@ -123,7 +123,7 @@ fetchPluginRsyslog="if \$programname == 'systemd' and re_match(\$msg, \"Started.
 if \$programname == 'systemd' and re_match(\$msg, \"fetchmail.*Succeeded\") then stop"
 
 step_7_info() { echo "Create separate log file for fetchmail using rsyslog"; }
-step_7_alias() { ALIAS="newlog"; }
+step_7_alias() { echo "newlog"; }
 step_7() {
   addConf -f "$fetchmailRsyslog" "$fetchmailRsyslogLoc"
   addConf -f "$fetchmailRotate" "$fetchmailRotateLoc"
@@ -144,7 +144,7 @@ fetchmailRsyslog="if \$programname == 'fetchmail' or \$programname == 'fetchmail
 & stop"
 
 step_18_info() { echoinfoArgs "[NEW VERSION]"; echo "Check for updates"; }
-step_18_alias() { ALIAS="updatecheck"; }
+step_18_alias() { echo "updatecheck"; }
 step_18() {
   shift
   local isInstalled=
@@ -175,12 +175,12 @@ step_20_info() {
     echo
   fi
 }
-step_20_alias() { ALIAS="backup"; }
+step_20_alias() { echo "backup"; }
 step_20() {
   shift
   local tempRoot=
   if [ $CONFIG -eq 0 ] ; then
-    echoerr " [E] No configuration file found"
+    error -e "No configuration file found"
     return 1
   fi
   if [ ! -z $PFA_BACKUP ] ; then
@@ -203,7 +203,7 @@ step_20() {
 step_22_info() {
   echoinfoArgs "[CUSTOM VERSION]"
   shift
-  if [ $CONTEXT_EXE -ne 0 ]; then
+  if contextExe; then
     echoinfo -n "Upgrade to version "
     if [ -z "$1" ]; then
       echo -n "$(curl --silent "$latestUrl" | grep -Po '"tag_name": "postfixadmin-\K.*?(?=")')"
@@ -215,7 +215,7 @@ step_22_info() {
     echo "Upgrade to latest or a custom version from github"
   fi
 }
-step_22_alias() { ALIAS="upgrade"; }
+step_22_alias() { echo "upgrade"; }
 step_22() {
   shift # don't need step number
   local latestVersion=
@@ -226,16 +226,16 @@ step_22() {
   fi
 
   if [ -z $latestVersion ] ; then
-    echoerr " [E] Cannot determine latest version from github repository"
+    error -e "Cannot determine latest version from github repository"
     return 1
-  elif [ $QUIET -eq 0 ] ; then
+  elif interactive ; then
     echo
     exe read -p "Install $latestVersion to $PFA_SRV_LOC [n]o/(y)es? " answer
     case $answer in
       [yY])
         ;;
       *)
-        echoerr " [I] Upgrade aborted"
+        info -e "Upgrade aborted"
         return 1
         ;;
     esac
@@ -245,7 +245,7 @@ step_22() {
   # Trailing ".0" is removed if exists
   local isInstalled=$(grep -E "Version ${latestVersion%.0} " "${PFA_SRV_LOC}/CHANGELOG.TXT" >>/dev/null 2>&1 && echo "1" || echo "0")
   if [ $isInstalled -eq 1 ] ; then
-    echoerr " [E] Version $latestVersion is already installed"
+    error -e "Version $latestVersion is already installed"
     return 2
   fi
 
@@ -308,7 +308,7 @@ tempDown="/tmp/${toolName}"
 tempLoc="$tempDown/${toolName}.tar.gz"
 
 step_23_info() { echo "Clean temporary files: $tempDown"; }
-step_23_alias() { ALIAS="clean"; }
+step_23_alias() { echo "clean"; }
 step_23() {
   exe rm -rf "$tempDown"
 }
@@ -318,11 +318,11 @@ step_100_info() {
   echo "Execute $toolName client script"
   echoinfo "[OPTIONS] are passed on to $toolName-cli unmodified"
 }
-step_100_alias() { ALIAS="cli"; }
+step_100_alias() { echo "cli"; }
 step_100() {
   shift
   exe ${PFA_SRV_LOC}/scripts/$toolName-cli $@
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/postgres.sh b/seqs/postgres.sh
index be5d953..661a3e7 100755
--- a/seqs/postgres.sh
+++ b/seqs/postgres.sh
@@ -16,7 +16,7 @@ CONFIG=0
 CONFIG_FILE_NAME="postgres.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
@@ -24,14 +24,14 @@ step_config() {
 }
 
 step_1_info() { echo "Installing $toolName dependencies"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local aptOption=
 
   exe apt update
   endReturn -o $? "Updating apt repositories failed"
 
-  if [ $QUIET -ne 0 ] ; then
+  if quiet ; then
     aptOption="-y"
   else
     aptOption=""
@@ -41,7 +41,7 @@ step_1() {
 }
 
 step_2_info() { echo "Create postgres database"; }
-step_2_alias() { ALIAS="createdb"; }
+step_2_alias() { echo "createdb"; }
 step_2() {
   readDatabaseInfos
 
@@ -52,7 +52,7 @@ step_2() {
 }
 
 step_4_info() { echoinfoArgs "[DATABASE]"; echo "Drop a postgres database"; }
-step_4_alias() { ALIAS="dropdb"; }
+step_4_alias() { echo "dropdb"; }
 step_4() {
   shift
   local dbname=$1
@@ -65,7 +65,7 @@ step_4() {
 }
 
 step_6_info() { echoinfoArgs "[DATABASE]"; echo "Size of a postgres database"; }
-step_6_alias() { ALIAS="sizedb"; }
+step_6_alias() { echo "sizedb"; }
 step_6() {
   shift
   local dbname=$1
@@ -78,14 +78,14 @@ step_6() {
 }
 
 step_8_info() { echo "List available databases"; }
-step_8_alias() { ALIAS="listdb"; }
+step_8_alias() { echo "listdb"; }
 step_8() {
   exe cd ~postgres
   exe su ${toolUser} -c "psql -c '\l'"
 }
 
 step_10_info() { echoinfoArgs "[DATABASE]"; echo "List all tables of a postgres database"; }
-step_10_alias() { ALIAS="listtables"; }
+step_10_alias() { echo "listtables"; }
 step_10() {
   shift
   local dbname=$1
@@ -98,7 +98,7 @@ step_10() {
 }
 
 step_20_info() { echoinfoArgs "[DATABASE]"; echo "Backup ${toolName} database"; }
-step_20_alias() { ALIAS="backupdb"; }
+step_20_alias() { echo "backupdb"; }
 step_20() {
   shift
   local dbname=$1
@@ -118,7 +118,7 @@ step_20() {
 }
 
 step_22_info() { echo "Postgres database restore"; }
-step_22_alias() { ALIAS="restoredb"; }
+step_22_alias() { echo "restoredb"; }
 step_22() {
   echo " [I] Postgres database restore procedure"
   echo "1. Create a empty postgres database first (step 4)"
@@ -140,7 +140,7 @@ step_24_info() {
   echoinfoArgs "[DATABASE]"
   echo "Clean all ${DELYEAR} backups of a database";
 }
-step_24_alias() { ALIAS="backupclean"; }
+step_24_alias() { echo "backupclean"; }
 step_24() {
   shift
   local DELYEAR=$(($(date +%Y)-2))
@@ -169,5 +169,5 @@ readDatabaseInfos() {
   echo
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/postgrey.sh b/seqs/postgrey.sh
index a45208e..94a14a4 100755
--- a/seqs/postgrey.sh
+++ b/seqs/postgrey.sh
@@ -24,10 +24,10 @@ CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 #}
 
 step_1_info() { echo "Install $toolDeps"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   fi
   exe apt update
@@ -38,7 +38,7 @@ step_2_info() {
   echo "Add cron to update whitelist_clients from"
   echoinfo "$updateUrl"
 }
-step_2_alias() { ALIAS="cron"; }
+step_2_alias() { echo "cron"; }
 step_2() {
   addConf -s "$postCron" "$postCronLoc"
 }
@@ -47,7 +47,7 @@ postCron="# -q quiet -N timestamping (overwrite existing file) -O target file
 01 23 5 * * root /usr/bin/wget -qNO \"$toolWhitelistLoc\" $updateUrl && /usr/sbin/service postgrey restart"
 
 step_3_info() { echo "Configuration notes"; }
-step_3_alias() { ALIAS="notes"; }
+step_3_alias() { echo "notes"; }
 step_3() {
   echo "$toolNotes"
 }
@@ -71,10 +71,10 @@ toolNotes="
 "
 
 step_10_info() { echo "Restart $toolName"; }
-step_10_alias() { ALIAS="restart"; }
+step_10_alias() { echo "restart"; }
 step_10() {
   exe service $toolName restart
 }
 
-VERSION_SEQREV=11
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/pyload.sh b/seqs/pyload.sh
index 6864688..06c8c7f 100755
--- a/seqs/pyload.sh
+++ b/seqs/pyload.sh
@@ -17,20 +17,20 @@ SCRIPT_NAME=${SCRIPT_NAME%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return 1
+    dry || return 1
   fi
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
   return 0
 }
 
 step_1_info() { echo "Apt sources.list check and update"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   echo "Make sure you have the \"deb-src\" entry active in your /etc/apt/sources.list"
   echo "Especially check for \"non-free\""
@@ -57,7 +57,7 @@ step_3_info() {
   echoinfo "     raspi: Raspberry Pi OS"
   echoinfo "    debian: Debian"
 }
-step_3_alias() { ALIAS="deps"; }
+step_3_alias() { echo "deps"; }
 step_3() {
   shift
   local lDeps="$toolDeps"
@@ -66,7 +66,7 @@ step_3() {
       lDeps="$toolDepsDebian";;
     raspi);;
     *)
-      echoerr " [E] Unrecognized target"
+      error -e "Unrecognized target"
       return 1;;
   esac
   exe apt-get install ${lDeps} $APTOPT
@@ -115,17 +115,17 @@ ExecStart=/usr/bin/python \${PYL_INSTALL_DIR}/pyLoadCore.py
 WantedBy=multi-user.target"
 
 step_7_info() { echo "Add ufw rules"; }
-step_7_alias() { ALIAS="ufw"; }
+step_7_alias() { echo "ufw"; }
 step_7() {
-  echoseq " [I] Port 9666 needs to be forwarded to the target machine with ssh"
-  echoseq "     ssh -L 9666:localhost:9666 user@host -N"
+  info "Port 9666 needs to be forwarded to the target machine with ssh"
+  info "     ssh -L 9666:localhost:9666 user@host -N"
   exe ufw allow in on eth0 to any port 8000 proto tcp comment "pyload webinterface"
   exe ufw allow in on eth0 to any port 7227 proto tcp comment "pyload remotes"
   exe ufw allow out on eth0 to 192.168.23.20 port 5222 proto tcp comment "XMPP Connection"
 }
 
 step_10_info() { echo "Upgrade to latest version of branch $toolBranch"; }
-step_10_alias() { ALIAS="upgrade"; }
+step_10_alias() { echo "upgrade"; }
 step_10() {
   exe service $toolName stop
   exe cd "$PYL_INSTALL_DIR"
@@ -134,5 +134,5 @@ step_10() {
   echo "     Do so manually with: service $toolName start"
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/raspberry.sh b/seqs/raspberry.sh
index e2525f4..35b4e8d 100755
--- a/seqs/raspberry.sh
+++ b/seqs/raspberry.sh
@@ -13,14 +13,14 @@ osName=
 distName=
 RPI_BOOT_CONFIG="/boot/config.txt"
 
-step_config() {
+seq_config() {
   # Shift away args
   local lArgs=( "$@" ); evalArgs "${lArgs[@]}"; shift $?
   # Set download url with specified CPU architecture
   PIDOWNURL="https://downloads.raspberrypi.org/raspios_lite_${PIARCH}_latest"
 
   if [ "$(which lsb_release)" == "" ] ; then
-    echoerr " [W] Cannot detect OS. Assuming Ubuntu"
+    warning -e "Cannot detect OS. Assuming Ubuntu"
     osName="Ubuntu"
   else
     osName=$(lsb_release -is)
@@ -28,12 +28,12 @@ step_config() {
   fi
 
   if [ "$osName" == "" ] ; then
-    echoerr " [W] Error dedecting OS. Assuming Ubuntu"
+    warning -e "Error dedecting OS. Assuming Ubuntu"
     osName="Ubuntu"
   fi
 
-  echoseq "     Detected OS: $osName $distName"
-  echoseq "     Requested CPU Architecture: $PIARCH"
+  info "     Detected OS: $osName $distName"
+  info "     Requested CPU Architecture: $PIARCH"
 
   return 0
 }
@@ -80,14 +80,14 @@ step_1_info() {
 
   echoinfoArgs "[OPTIONS] [SD CARD DEVICE] [HD DEVICE]"
   echo "Download latest Raspberry Pi OS lite image $PIARCH"
-  if [ $CONTEXT_EXE -ne 0 ]; then
+  if contextExe; then
     echoinfo "Download URL: $PIDOWNURL"
   else
     echoinfo " [OPTIONS]"
     echoinfo "  -a, --arch  :  armhf (default), arm64"
   fi
 }
-step_1_alias() { ALIAS="setup"; }
+step_1_alias() { echo "setup"; }
 step_1() {
   # Shift away args
   shift; local lArgs=( "$@" ); evalArgs "${lArgs[@]}"; shift $?
@@ -115,9 +115,9 @@ step_2_info() {
   echoinfoArgs "[OPTIONS] [SD CARD DEVICE]"
   echo "Write Raspberry Pi OS image to SD card"
   echoinfo "This operation will delete all data previously on the SD card!"
-  [ $CONTEXT_EXE -ne 0 ] && [ ! -z $1 ] && echoinfo "   [SD CARD DEVICE]: $1" 
+  contextExe && [ ! -z $1 ] && echoinfo "   [SD CARD DEVICE]: $1" 
 }
-step_2_alias() { ALIAS="writesd"; }
+step_2_alias() { echo "writesd"; }
 step_2() {
   # Shift away args
   shift; local lArgs=( "$@" ); evalArgs "${lArgs[@]}"; shift $?
@@ -151,7 +151,7 @@ step_2() {
   SDROOT=""
 
   # TODO ? automatic remount
-  echoerr " [W] Please remove SD now and plug it back in."
+  warning -e "Please remove SD now and plug it back in."
   exe read -p "     Press enter to contiue."
 }
 
@@ -161,7 +161,7 @@ step_3_info() {
 
   echoinfoArgs "[SD CARD DEVICE]"
   echo "Prepare SD for first run"
-  if [ $CONTEXT_EXE -ne 0 ]; then
+  if contextExe; then
     [ ! -z $1 ] && echoinfo "   [SD CARD DEVICE]: $1"
   fi
 }
@@ -170,7 +170,7 @@ step_3() {
   shift; local lArgs=( "$@" ); evalArgs "${lArgs[@]}"; shift $?
 
   if [ -z $1 ] && [ ! -z $SDDEV ] ; then
-    if [ $QUIET -ne 0 ] ; then
+    if quiet ; then
       answer="n"
     else
       exe lsblk -p "$SDDEV"
@@ -192,7 +192,7 @@ step_3() {
   endReturn -o $? "SD card device not found"
 
   if [ ! -w "$SDBOOT" ] ; then
-    echoerr " [E] SD card boot partion not writeable"
+    error -e "SD card boot partion not writeable"
     return 1
   fi
 
@@ -212,12 +212,12 @@ step_4_info() {
 
   echoinfoArgs "[SD CARD DEVICE] [HD DEVICE]" 
   echo "Prepare SD card to boot from hard disk"
-  if [ $CONTEXT_EXE -ne 0 ]; then
+  if contextExe; then
     [ ! -z $1 ] && echoinfo "   [SD CARD DEVICE]: $1"
     [ ! -z $2 ] && echoinfo "        [HD DEVICE]: $2"
   fi
 }
-step_4_alias() { ALIAS="hdboot"; }
+step_4_alias() { echo "hdboot"; }
 step_4() {
   # Shift away args
   shift; local lArgs=( "$@" ); evalArgs "${lArgs[@]}"; shift $?
@@ -264,7 +264,7 @@ step_4() {
   echo " [I] Resize root partion of SD: ${SDROOT} "
   step resizesd "$SDDEV"
   if [ $? -ne 0 ] ; then
-    echoerr " [W] Something seems to have failed during resize"
+    warning -e "Something seems to have failed during resize"
   else
     # Disable init script to resize SD
     echo -n " [I] remove \"init=\" part from $SDBOOT/cmdline.txt.sd"
@@ -284,7 +284,7 @@ step_5_info() {
   echoinfoArgs "[SD CARD DEVICE] [HD DEVICE]"
   echo "Prepare HD for boot (TODO)"
 
-  if [ $CONTEXT_EXE -ne 0 ]; then
+  if contextExe; then
     [ ! -z $1 ] && echoinfo "  [SD CARD DEVICE]: $1"
     [ ! -z $2 ] && echoinfo "       [HD DEVICE]: $2"
   fi
@@ -294,7 +294,7 @@ step_5() {
   shift; local lArgs=( "$@" ); evalArgs "${lArgs[@]}"; shift $?
 
   #TODO
-  echoerr " [E] Not ready yet...TODO"
+  error -e "Not ready yet...TODO"
   #return 1
   read_sd_dev "$1"
   endReturn -o $? "SD detection error $?"
@@ -355,7 +355,7 @@ read_sd_dev() {
   fi
 
   if [ ! -b "$SDDEV" ] ; then
-    echoerr " [I] $SDDEV not a block device"
+    info -e "$SDDEV not a block device"
     SDDEV=
     return 1
   fi
@@ -423,17 +423,17 @@ read_hd_dev() {
 }
 
 step_20_info() { echo "Disable swap file and remove it"; }
-step_20_alias() { ALIAS="disable_swap"; }
+step_20_alias() { echo "disable_swap"; }
 step_20() {
   exe swapoff -a
   exe systemctl disable dphys-swapfile
   exe rm -rf "$rpiSwapFile"
-  echoerr " [W] Reboot to apply changes"
-  if [ $QUIET -eq 0 ] ; then
+  warning -e "Reboot to apply changes"
+  if interactive ; then
     exe read -p "     Reboot now ([n]/y)? " answer
     case $answer in
       [yY])
-        echoerr " [I] Rebooting now ..."
+        info -e "Rebooting now ..."
         exe reboot
         ;;
       *)
@@ -444,12 +444,12 @@ step_20() {
 rpiSwapFile="/var/swap"
 
 step_22_info() { echoinfoArgs "[SD CARD DEVICE]"; echo "Resize second SD card partition"; }
-step_22_alias() { ALIAS="resizesd"; }
+step_22_alias() { echo "resizesd"; }
 step_22() {
   shift
   read_sd_dev "$1"
   if [ -z $SDDEV ] || [ "$SDDEV" = "" ] || [ "$SDROOT" == "/" ] ; then
-    echoerr " [E] No SD found"
+    error -e "No SD found"
     return 1
   fi
   echo " [I] Device to be resized: $SDROOTDEV"
@@ -477,7 +477,7 @@ step_24_info() {
   echoinfo " [OPTION]"
   echoinfo "  -p : Turn off permanentely (/etc/rc.local)"
 }
-step_24_alias() { ALIAS="disable_powerled"; }
+step_24_alias() { echo "disable_powerled"; }
 step_24() {
   exep "${ledOffCmd}"
   if [ ! -z "$2" ] && [ "$2" == "-p" ] ; then
@@ -497,13 +497,13 @@ ledPowerBright="/sys/class/leds/led1/brightness"
 ledOffCmd="sudo sh -c 'echo 0 > ${ledPowerBright}'"
 
 step_26_info() { echo "Restart network without reboot"; }
-step_26_alias() { ALIAS="netrestart"; }
+step_26_alias() { echo "netrestart"; }
 step_26() {
   exep "sudo ip link set eth0 down && sudo ip link set eth0 up"
 }
 
 step_28_info() { echo "Disable bluetooth"; }
-step_28_alias() { ALIAS="disable_bluetooth"; }
+step_28_alias() { echo "disable_bluetooth"; }
 step_28() {
   checkBootConfig "$RPI_CONFIG_DTOVERLAY" "$RPI_CONF_DI_BLUETOOTH"
   [ $? -eq 0 ] && endReturn -o 1 "Bluetooth already disabled"
@@ -520,26 +520,26 @@ step_29() {
   exe systemctl disable bluealsa.service
   exe systemctl disable bluetooth.service
 
-  echoseq " [I] Consider uninstalling bluetooth software:"
-  echoseq "apt purge --autoremove -y bluez"
-  echoseq
-  echoseq " [W] Reboot to make changes active"
+  info "Consider uninstalling bluetooth software:"
+  info "apt purge --autoremove -y bluez"
+  info
+  warning "Reboot to make changes active"
 }
 
 
 step_31_info() { echo "Disable Wifi"; }
-step_31_alias() { ALIAS="disable_wifi"; }
+step_31_alias() { echo "disable_wifi"; }
 step_31() {
   checkBootConfig "$RPI_CONFIG_DTOVERLAY" "$RPI_CONF_DI_WIFI"
   [ $? -eq 0 ] && endReturn -o 1 "Wifi already disabled"
 
   addConf -a "${RPI_CONFIG_DTOVERLAY}=$RPI_CONF_DI_WIFI" "$RPI_BOOT_CONFIG"
 
-  echoseq " [W] Reboot to make changes active"
+  warning "Reboot to make changes active"
 }
 
 step_33_info() { echo "Disable HDMI"; }
-step_33_alias() { ALIAS="disable_hdmi"; }
+step_33_alias() { echo "disable_hdmi"; }
 step_33() {
   checkBootConfig "$RPI_CONFIG_HDMI_BLANK" "$RPI_CONF_DI_HDMI"
   [ $? -eq 0 ] && endReturn -o 1 "HDMI already disabled"
@@ -563,7 +563,7 @@ step_34() {
   exep "echo \"${tvserviceOffCmd}\" >> $startScript"
   exep "echo -e \"\nexit 0\" >> $startScript"
 
-  echoseq " [W] Reboot to make changes active"
+  warning "Reboot to make changes active"
 }
 tvserviceBin="/usr/bin/tvservice"
 tvserviceOffCmd="${tvserviceBin} -o'"
@@ -577,9 +577,9 @@ checkBootConfig() {
   return $? 
 }
 
-step_100_alias() { ALIAS="notes"; }
+step_100_alias() { echo "notes"; }
 step_100() {
-  outColor green
+  color green
   cat <<NOTES_EOF
 # Initial configuration steps
 
@@ -614,5 +614,5 @@ step_100() {
 NOTES_EOF
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/redis.sh b/seqs/redis.sh
index bca50cc..26556cc 100755
--- a/seqs/redis.sh
+++ b/seqs/redis.sh
@@ -12,7 +12,7 @@ SCRIPT_NAME=${SCRIPT_NAME%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
@@ -20,10 +20,10 @@ step_config() {
 }
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   fi
 
@@ -32,7 +32,7 @@ step_1() {
 }
 
 step_2_info() { echo "Installation notes"; }
-step_2_alias() { ALIAS="notes"; }
+step_2_alias() { echo "notes"; }
 step_2() {
   cat <<NOTES_EOF
 # For php applications make sure php-redis is installed
@@ -70,7 +70,7 @@ step_10_info() {
   echoinfo " [CLI COMMAND]"
   echoinfo "   e.g. info"
 }
-step_10_alias() { ALIAS="cli"; }
+step_10_alias() { echo "cli"; }
 step_10() {
   shift
   local cliCmd="$@"
@@ -82,5 +82,5 @@ step_10() {
   fi
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/roundcube.sh b/seqs/roundcube.sh
index 515f691..a9ee380 100755
--- a/seqs/roundcube.sh
+++ b/seqs/roundcube.sh
@@ -16,7 +16,7 @@ CONFIG=0
 CONFIG_FILE_NAME="${toolName}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## use sequencer api:
   initSeqConfig -t "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $CONFIG -eq 0 ] ; then
@@ -25,10 +25,10 @@ step_config() {
 }
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   fi
 
@@ -53,7 +53,7 @@ step_2() {
 
   if [ "$EXPECTED_CHECKSUM" != "$ACTUAL_CHECKSUM" ]
   then
-    echoerr ' [E] Invalid installer checksum'
+    error -e ' [E] Invalid installer checksum'
     exe rm composer-setup.php
     return 1
   fi
@@ -65,7 +65,7 @@ step_2() {
 }
 
 step_3_info() { echo "Configure $toolName"; }
-step_3_alias() { ALIAS="config"; }
+step_3_alias() { echo "config"; }
 step_3() {
   echo " [I] Recommended composer packages to be added to \"require\" section:"
   echo '      "melanie2/mobile": "*",'
@@ -89,9 +89,9 @@ step_3() {
 }
 
 step_10_info() { echo "Configuration notes"; }
-step_10_alias() { ALIAS="notes"; }
+step_10_alias() { echo "notes"; }
 step_10() {
-  outColor green
+  color green
   cat <<NOTES_END
 # smtp port if missing after installation
    [$RC_LOC/config/config.inc.php]
@@ -126,9 +126,9 @@ NOTES_END
 }
 
 step_12_info() { echo "Troubleshooting"; }
-step_12_alias() { ALIAS="trouble"; }
+step_12_alias() { echo "trouble"; }
 step_12() {
-  outColor green
+  color green
   cat <<TROUBLE_END
 # On composer update errors.
 
@@ -148,10 +148,10 @@ step_20_info() {
     echo
   fi
 }
-step_20_alias() { ALIAS="backup"; }
+step_20_alias() { echo "backup"; }
 step_20() {
   if [ $CONFIG -eq 0 ] ; then
-    echoerr " [E] No configuration file found"
+    error -e "No configuration file found"
     return 1
   fi
   if [ ! -z $RC_BACKUP ] ; then
@@ -168,7 +168,7 @@ step_22_info() {
   echoinfoArgs "[CUSTOM VERSION]"
   echo "Upgrade installation to \"latest\" from github if [CUSTOM_VERSION] is empty"
 }
-step_22_alias() { ALIAS="upgrade"; }
+step_22_alias() { echo "upgrade"; }
 step_22() {
   shift # don't need step number
   local currentVersion=
@@ -180,9 +180,9 @@ step_22() {
   fi
 
   if [ -z $latestVersion ] ; then
-    echoerr " [E] Cannot determine latest version from github repository"
+    error -e "Cannot determine latest version from github repository"
     return 1
-  elif [ $QUIET -eq 0 ] ; then
+  elif interactive ; then
     echo
     currentVersion="$(grep -Po ' \| Version \K.*?(?= )' $RC_LOC/index.php)"
     exe read -p "Install $latestVersion over $currentVersion to $RC_LOC [n]o/(y)es? " answer
@@ -190,7 +190,7 @@ step_22() {
       [yY])
         ;;
       *)
-        echoerr " [I] Upgrade aborted"
+        info -e "Upgrade aborted"
         return 1
         ;;
     esac
@@ -198,7 +198,7 @@ step_22() {
 
   local isInstalled=$(grep -E "RELEASE $latestVersion" "${RC_LOC}/CHANGELOG" >>/dev/null && echo "1" || echo "0")
   if [ $isInstalled -eq 1 ] ; then
-    echoerr " [E] Version $latestVersion is already installed"
+    error -e "Version $latestVersion is already installed"
     return 2
   fi
 
@@ -211,7 +211,7 @@ step_22() {
 }
 
 step_23_info() { echo "Post upgrade procedure"; }
-step_23_alias() { ALIAS="postupgrade"; }
+step_23_alias() { echo "postupgrade"; }
 step_23() {
   exe cd "$RC_LOC"
   echo " [I] Starting post update procedure"
@@ -254,5 +254,5 @@ downloadLatest() {
 tempDown="/tmp/roundcube"
 tempLoc="$tempDown/rc.tar.gz"
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/rsyslog.sh b/seqs/rsyslog.sh
index e3613f4..ed7283a 100755
--- a/seqs/rsyslog.sh
+++ b/seqs/rsyslog.sh
@@ -17,21 +17,21 @@ CONFIG_RNGD="$WDIR/${toolName}/10-rngd.conf"
 CONFIG_REMOTE="$WDIR/${toolName}/90-remote.conf"
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install "$toolName"
 }
 
 step_2_info() { echo "Check configuration"; }
-step_2_alias() { ALIAS="checkconf"; }
+step_2_alias() { echo "checkconf"; }
 step_2() {
   exe rsyslogd -N 1 -f "$toolConfig"
   endReturn -o $? "Invalid $toolName configuration"
 }
 
 step_10_info() { echo "Reduce snmpd syslog messages"; }
-step_10_alias() { ALIAS="snmpd"; }
+step_10_alias() { echo "snmpd"; }
 step_10() {
   addConf -s -f "$CONFIG_SNMP" "$CONFIG_SNMP_DEST"
   endReturn -o $?
@@ -42,7 +42,7 @@ step_10() {
 CONFIG_SNMP_DEST="/etc/rsyslog.d/$(basename $CONFIG_SNMP)"
 
 step_12_info() { echo "Reduce cron syslog messages"; }
-step_12_alias() { ALIAS="cron"; }
+step_12_alias() { echo "cron"; }
 step_12() {
   addConf -s -f "$CONFIG_CRON" "$CONFIG_CRON_DEST"
   endReturn -o $?
@@ -53,7 +53,7 @@ step_12() {
 CONFIG_CRON_DEST="/etc/rsyslog.d/$(basename $CONFIG_CRON)"
 
 step_14_info() { echo "Reduce rngd syslog messages"; }
-step_14_alias() { ALIAS="rngd"; }
+step_14_alias() { echo "rngd"; }
 step_14() {
   addConf -s -f "$CONFIG_RNGD" "$CONFIG_RNGD_DEST"
   endReturn -o $?
@@ -67,7 +67,7 @@ step_16_info() {
   echoinfoArgs "<REMOTE_IP:PORT>"
   echo "Send syslog messages to remote syslog server"
 }
-step_16_alias() { ALIAS="remote"; }
+step_16_alias() { echo "remote"; }
 step_16() {
   local rex='^[0-9\.]+\:[0-9]+$'
   local remoteHost=""
@@ -75,7 +75,7 @@ step_16() {
   if [[ "$2" =~ $rex ]] ; then
     remoteHost=$2
   else
-    echoerr " [E] No valid IP:PORT detected: $2"
+    error -e "No valid IP:PORT detected: $2"
     return 1
   fi 
   addConf -s -f "$CONFIG_REMOTE" "$CONFIG_REMOTE_DEST"
@@ -89,15 +89,15 @@ step_16() {
 CONFIG_REMOTE_DEST="/etc/rsyslog.d/$(basename $CONFIG_REMOTE)"
 
 step_17_info() { echo "Add ufw rules for sending to remote syslog. Port 514/tcp"; }
-step_17_alias() { ALIAS="ufw"; }
+step_17_alias() { echo "ufw"; }
 step_17() {
   exe ufw allow out on eth0 to any port 514 proto tcp comment "syslog remote"
 }
 
 step_30_info() { echo "Activating syslog server"; }
-step_30_alias() { ALIAS="server"; }
+step_30_alias() { echo "server"; }
 step_30() {
-  outColor green
+  color green
   cat << SERVER_EOF
 
 # Uncomment the chapter
@@ -106,5 +106,5 @@ step_30() {
 SERVER_EOF
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/snmp.sh b/seqs/snmp.sh
index e6a96cc..7906719 100755
--- a/seqs/snmp.sh
+++ b/seqs/snmp.sh
@@ -6,9 +6,9 @@ toolConfigLoc="/etc/snmp"
 toolConfig="${toolConfigLoc}/snmpd.conf"
 toolSysUser="Debian-snmp"
 
-step_config() {
+seq_config() {
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
   ## Return of non zero value will abort the sequence
   return 0
@@ -16,10 +16,10 @@ step_config() {
 
 
 step_1_info() { echo "Install packages for $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
-  if [ $QUIET != 0 ]; then
+  if quiet; then
     exe apt-get -qq install $toolName
   else
     exe apt install $toolName
@@ -32,23 +32,23 @@ step_2_info() {
   echo "Setup snmp v3 access"
   echoinfo "  -s : Stop after creating authentication entry"
 }
-step_2_alias() { ALIAS="v3access"; }
+step_2_alias() { echo "v3access"; }
 step_2() {
   #
   ## Create authentication entry
   exep "cat \"$v3AuthLoc\" | grep -e '^\s*usmUser'"
   if [ "$?" == "0" ]; then
-    echoseq
+    info
 
     exe read -p "User entry found. Continue: y/n(default)? " answer
     case $answer in
       [yY])
-        echoseq
-        echoseq "Continuing installation..."
+        info
+        info "Continuing installation..."
         ;;
       *)
-        echoseq
-        echoseq "Installation aborted"
+        info
+        info "Installation aborted"
         return 1; 
         ;;
     esac 
@@ -56,14 +56,14 @@ step_2() {
 
   read -p "SNMPv3 Username: " v3User
   read -p "SNMPv3 Password: " v3Pass
-  echoseq
+  info
   read -p "Repeat Password: " v3Pass2
 
   if [ "$v3Pass" != "$v3Pass2" ] ; then
-    echoerr " [E] Password mismatch"
+    error -e "Password mismatch"
     return 1
   fi
-  echoseq
+  info
 
   exe service snmpd stop
 
@@ -74,7 +74,7 @@ step_2() {
 
   shift
   if [ ! -z $1 ] && [ "$1" == "-s" ] ; then
-    echoseq " [I] Stop after creating authentication config"
+    info "Stop after creating authentication config"
     exe service snmpd start
     return 0
   fi
@@ -105,7 +105,7 @@ step_5_info() {
   echo "Add ufw rules for port 161 udp"
   echoinfo "  [INTERFACE] (default: eth0)"
 }
-step_5_alias() { ALIAS="ufw"; }
+step_5_alias() { echo "ufw"; }
 step_5() {
   shift
   local lInterface="eth0"
@@ -118,7 +118,7 @@ step_5() {
 }
 
 step_20_info() { echo "Extend $toolName for Raspberry Pi"; }
-step_20_alias() { ALIAS="raspberry"; }
+step_20_alias() { echo "raspberry"; }
 step_20() {
   checkExtend raspberry
   if [ "$?" != "0" ]; then
@@ -143,7 +143,7 @@ rpiSudoersLoc="/etc/sudoers.d/snmprpi"
 rpiSudoersContent="${toolSysUser} ALL=(ALL) NOPASSWD: /etc/snmp/raspberry.sh, /usr/bin/vcgencmd*"
 
 step_22_info() { echo "Extend $toolName with OS update availablity"; }
-step_22_alias() { ALIAS="osupdate"; }
+step_22_alias() { echo "osupdate"; }
 step_22() {
   checkExtend osupdate 
   if [ "$?" != "0" ]; then
@@ -167,21 +167,21 @@ osUpdateCron="/etc/cron.d/aptUpdate"
 osUpdateCronContent="22 */6 * * * root /usr/bin/apt-get -qq update"
 
 step_25_info() { echo "Prepare nginx to provide php-fpm status to $toolName"; }
-step_25_alias() { ALIAS="phpfpm"; }
+step_25_alias() { echo "phpfpm"; }
 step_25() {
   echo -e "\n [!] Please add the following to your default server:\n"
   echo "$phpFpmStatusNginx"
   echo
-  if [ $QUIET -ne 0 ] ; then
+  if quiet ; then
     answer=n
   else
     exe read -p "Open new shell to configure y/[n]? " answer
   fi
   case $answer in
     [yY])
-      echoseq " [I] Opening interactive shell. Type \"exit\" to return to this script."
+      info "Opening interactive shell. Type \"exit\" to return to this script."
       exe bash -i
-      echoseq " [I] Interactive shell ended. Continuing with $0."
+      info "Interactive shell ended. Continuing with $0."
       exe nginx -t
       endReturn -o $? "Nginx configuration error"
 
@@ -206,7 +206,7 @@ fastcgi_pass   unix:/var/run/php/php${phpVersionStr}-fpm.sock;
 }"
 
 step_26_info() { echo "Prepare php config for php-fpm status"; }
-step_26_alias() { ALIAS="phpfpm_config"; }
+step_26_alias() { echo "phpfpm_config"; }
 step_26() {
   exe sed -i "s/^;\(pm\.status_path\)/\1/" "$phpPoolConfigLoc"
   exe php-fpm${phpVersionStr} -t
@@ -218,7 +218,7 @@ phpConfigDir="/etc/php/${phpVersionStr}"
 phpPoolConfigLoc="${phpConfigDir}/fpm/pool.d/www.conf"
 
 step_27_info() { echo "Extend $toolName with parsing of php-fpm status"; }
-step_27_alias() { ALIAS="phpfpm_extend"; }
+step_27_alias() { echo "phpfpm_extend"; }
 step_27() {
   checkExtend phpfpmsp
   if [ "$?" != "0" ]; then
@@ -236,21 +236,21 @@ step_27() {
 phpfpmExtendLoc="${toolConfigLoc}/phpfpmsp"
 
 step_29_info() { echo "Prepare nginx to provide status to $toolName"; }
-step_29_alias() { ALIAS="nginx"; }
+step_29_alias() { echo "nginx"; }
 step_29() {
-  echoseq -e "\n [!] Please add the following to your default server:\n"
-  echoseq "$nginxStatus"
-  echoseq
-  if [ $QUIET -ne 0 ] ; then
+  info -e "\n [!] Please add the following to your default server:\n"
+  info "$nginxStatus"
+  info
+  if quiet ; then
     answer=n
   else
     exe read -p "Open new shell to configure y/[n]? " answer
   fi
   case $answer in
     [yY])
-      echoseq " [I] Opening interactive shell. Type \"exit\" to return to this script."
+      info "Opening interactive shell. Type \"exit\" to return to this script."
       exe bash -i
-      echoseq " [I] Interactive shell ended. Continuing with $0."
+      info "Interactive shell ended. Continuing with $0."
       exe nginx -t
       endReturn -o $? "Nginx configuration error"
 
@@ -270,7 +270,7 @@ deny all;
 }
 "
 step_30_info() { echo "Extend $toolName with parsing of nginx status"; }
-step_30_alias() { ALIAS="nginx_extend"; }
+step_30_alias() { echo "nginx_extend"; }
 step_30() {
   checkExtend nginx
   if [ "$?" != "0" ]; then
@@ -289,10 +289,10 @@ nginxExtendLoc="${toolConfigLoc}/nginx"
 
 # postfix
 step_32_info() { echo "Extend for postfix detailed and queue"; }
-step_32_alias() { ALIAS="postfix"; }
+step_32_alias() { echo "postfix"; }
 step_32() {
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   fi
 
@@ -314,11 +314,11 @@ step_33() {
   exe chown root:$toolSysUser "$postfixCacheLoc"
   exe chmod 770 "$postfixCacheLoc"
 
-  echoseq " [I] Create symlink /var/log/maillog which is used by postfixdetailed"
+  info "Create symlink /var/log/maillog which is used by postfixdetailed"
   exe ln -fs /var/log/mail.log /var/log/maillog
 
-  echoseq " [I] Run /etc/snmp/postfixdetailed to create the initial cache file"
-  echoseq "     so you don't end up with some crazy initial starting value."
+  info "Run /etc/snmp/postfixdetailed to create the initial cache file"
+  info "     so you don't end up with some crazy initial starting value."
   exe sudo -u $toolSysUser "$postfixScript"
 }
 postfixCacheLoc="/var/cache/postfixdetailed"
@@ -328,9 +328,9 @@ postfixQueuesExtendLoc="${toolConfigLoc}/postfix-queues"
 step_34_info() { echo "Create sudoers file for postfix scripts"; }
 step_34() {
   addConf -s "$postfixSudoersContent" "$postfixSudoersLoc"
-  echoseq " [I] Changing ${postfixQueuesExtendLoc} to add sudo for qshape"
+  info "Changing ${postfixQueuesExtendLoc} to add sudo for qshape"
   exe sed -i -E "s/\`qshape/\`sudo qshape/" "${postfixQueuesExtendLoc}"
-  echoseq " [W] Reboot may be required to make these changes active"
+  warning "Reboot may be required to make these changes active"
 }
 postfixSudoersLoc="/etc/sudoers.d/snmppostfix"
 postfixSudoersContent="${toolSysUser} ALL=(ALL) NOPASSWD: /usr/sbin/qshape"
@@ -339,12 +339,12 @@ step_35_info() { echo "Create postfix extends (postfixdetailed and postfix-queue
 step_35() {
   checkExtend postfix-queues
   if [ $? -eq 0 ]; then
-    echoseq " [I] Create postfix-queues extend"
+    info "Create postfix-queues extend"
     addConf -a "extend mailq ${postfixQueuesExtendLoc}" "$toolConfig"
   fi
   checkExtend postfixdetailed
   if [ $? -eq 0 ]; then
-    echoseq " [I] Create postfixdetailed extend"
+    info "Create postfixdetailed extend"
     addConf -a "extend postfixdetailed ${postfixScript}" "$toolConfig"
   fi
 
@@ -353,10 +353,10 @@ step_35() {
 
 #fail2ban
 step_37_info() { echo "Extend for fail2ban jail information"; }
-step_37_alias() { ALIAS="fail2ban"; }
+step_37_alias() { echo "fail2ban"; }
 step_37(){
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   fi
 
@@ -367,7 +367,7 @@ step_37(){
 
   checkExtend fail2ban
   if [ $? -eq 0 ]; then
-    echoseq " [I] Create fail2ban extend"
+    info "Create fail2ban extend"
     addConf -a "extend fail2ban ${fail2banExtendLoc} -c" "$toolConfig"
   fi
 
@@ -385,7 +385,7 @@ fail2banCron="# Update cache for faster fail2ban polling
 */3 * * * * root ${fail2banExtendLoc} -u"
 
 step_40_info() { echo "Create linux distribution detection extend (distro)"; }
-step_40_alias() { ALIAS="distro"; }
+step_40_alias() { echo "distro"; }
 step_40() {
   checkExtend distro
   if [ $? -ne 0 ]; then
@@ -396,7 +396,7 @@ step_40() {
   endReturn -o $? "Download distro detection script failed"
   exe chmod +x "$distroExtendLoc"
 
-  echoseq " [I] Create distro extend"
+  info "Create distro extend"
   addConf -a "extend distro ${distroExtendLoc}" "$toolConfig"
 
   exe service snmpd restart
@@ -408,7 +408,7 @@ step_42_info() {
   echo "Gather dhcp information from a dhcpd lease file"
   echoinfo "pi-hole lease file not supported"
 }
-step_42_alias() { ALIAS="dhcp"; }
+step_42_alias() { echo "dhcp"; }
 step_42() {
   local locExtName="dhcpstats"
   local locExtUrl="https://github.com/librenms/librenms-agent/raw/master/snmp/dhcp.py"
@@ -424,10 +424,10 @@ step_42() {
   endReturn -o $? "Download $locExtName script failed"
   exe chmod +x "$locExtLoc"
 
-  echoseq " [I] Create extend for $locExtName"
+  info "Create extend for $locExtName"
   addConf -a "extend $locExtName ${locExtLoc}" "$toolConfig"
 
-  echoseq " [I] Create config for $locExtName"
+  info "Create config for $locExtName"
   addConf -s "$dhcpExtendConfig" "$dhcpExtendConfigLoc"
 
   echo " [W] Adapt config $dhcpExtendConfigLoc manually and restart snmpd"
@@ -437,7 +437,7 @@ dhcpExtendConfig="{\"leasefile\": \"/var/lib/dhcp/dhcpd.leases\"
 }"
 
 step_44_info() { echo "Extend unbound stats"; }
-step_44_alias() { ALIAS="unbound"; }
+step_44_alias() { echo "unbound"; }
 step_44() {
   local locExtName="unbound"
   local locExtUrl="https://github.com/librenms/librenms-agent/raw/master/snmp/unbound"
@@ -450,10 +450,10 @@ step_44() {
   endReturn -o $? "Download $locExtName script failed"
   exe chmod +x "$locExtLoc"
 
-  echoseq " [I] Create extend for $locExtName"
+  info "Create extend for $locExtName"
   addConf -a "extend $locExtName /usr/bin/sudo ${locExtLoc}" "$toolConfig"
 
-  echoseq " [I] Create config for $locExtName"
+  info "Create config for $locExtName"
   addConf -s "$unboundExtendConfig" "$unboundExtendConfigLoc"
 
   exe systemctl restart unbound.service
@@ -480,7 +480,7 @@ unboundSudoerLoc="/etc/sudoers.d/snmpunbound"
 unboundSudoer="Debian-snmp ALL=(ALL) NOPASSWD: /usr/sbin/unbound-control, ${toolConfigLoc}/unbound"
 
 step_46_info() { echo "Extend pi-hole stats"; }
-step_46_alias() { ALIAS="pihole"; }
+step_46_alias() { echo "pihole"; }
 step_46() {
   local locExtName="pi-hole"
   local locExtUrl="https://github.com/librenms/librenms-agent/raw/master/snmp/pi-hole"
@@ -495,19 +495,19 @@ step_46() {
   endReturn -o $? "Download $locExtName script failed"
   exe chmod +x "$locExtLoc"
 
-  echoseq " [I] Create extend for $locExtName"
+  info "Create extend for $locExtName"
   addConf -a "extend $locExtName ${locExtLoc}" "$toolConfig"
 
-  if [ $QUIET -ne 0 ]; then
-    outColor red
+  if quiet; then
+    color red
     echo -e " [W] Check the following in the extend script and restart snmpd:\n"
   else
     echo " [I] Check the follwing in the extend script:"
   fi
   echo "(API_AUTH_KEY) Add your pi-hole API key"
   echo "     (API_URL) and check the API URL"
-  outColor
-  if [ $QUIET -eq 0 ]; then
+  color
+  if interactive; then
     exe read -p "Hit Enter to continue..."
     exe vi "$locExtLoc"
     exe systemctl restart snmpd.service
@@ -516,9 +516,9 @@ step_46() {
 piholeDeps="jq"
 
 step_100_info() { echo "Notes"; }
-step_100_alias() { ALIAS="notes"; }
+step_100_alias() { echo "notes"; }
 step_100() {
-  outColor green
+  color green
   cat <<NOTES_END
 # Reduce log level of snmpd
 
@@ -565,18 +565,18 @@ NOTES_END
 
 checkExtend() {
   # adding dry run output for clarification
-  if [ $DRY -ne 0 ] ; then
-    echoseq " [I] check if \"extend ${1}\" exists..dry-run"
+  if dry ; then
+    info "check if \"extend ${1}\" exists..dry-run"
   fi
 
   exep "cat \"$toolConfig\" | grep -e '^\s*extend\s\+${1}' >>/dev/null 2>&1"
   # Only warn if entry exists and dry-run is not seleted
-  if [ $? -eq 0 ] && [ $DRY -eq 0 ] ; then  
+  if [ $? -eq 0 ] && ! dry ; then  
     return 1
   fi 
 
   return 0
 }
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/spamass.sh b/seqs/spamass.sh
index 8c21c44..3067eb8 100755
--- a/seqs/spamass.sh
+++ b/seqs/spamass.sh
@@ -26,10 +26,10 @@ step_1_info() {
   echo "Install packages: $toolDeps"
   echoinfo "May take a long time"
 }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   fi
   exe apt update
@@ -37,16 +37,16 @@ step_1() {
 } 
 
 step_20_info() { echo "List spam/ham counts"; }
-step_20_alias() { ALIAS="list"; }
+step_20_alias() { echo "list"; }
 step_20() {
   exe mysql -D $SA_BAYES_DBNAME -e 'select username,spam_count,ham_count from bayes_vars;'
 }
 SA_BAYES_DBNAME='spambayes_db'
 
 step_50_info() { echo "Notes"; }
-step_50_alias() { ALIAS="notes"; }
+step_50_alias() { echo "notes"; }
 step_50() {
-  outColor green
+  color green
   echo "$notes"
 }
 notes='
@@ -150,5 +150,5 @@ notes='
    saNewHam=$(cat);( echo "$saNewHam" | /usr/bin/sa-learn -u ${1} --ham ) &
 '
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/ssh.sh b/seqs/ssh.sh
index 5fd71d5..fe6c81e 100755
--- a/seqs/ssh.sh
+++ b/seqs/ssh.sh
@@ -9,14 +9,14 @@ aHost=""
 aPort="22"
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install ssh
 }
 
 step_3_info() { echo "Create $toolName authentication keys"; }
-step_3_alias() { ALIAS="create"; }
+step_3_alias() { echo "create"; }
 step_3() {
   exep "ssh-keygen -l -f $toolIdentity 2>>/dev/null"
   if [ $? -eq 0 ]; then
@@ -32,7 +32,7 @@ step_5_info() {
   echoinfo "[OPTIONS]"
   echoinfo "  -4 : Force Ipv4"
 }
-step_5_alias() { ALIAS="sendkey"; }
+step_5_alias() { echo "sendkey"; }
 step_5() {
   shift
   local arg
@@ -53,7 +53,7 @@ step_5() {
   done
 
   if [ -z "$1" ] || [ "$1" == "" ] ; then
-    echoerr " [E] Host not provided."
+    error -e "Host not provided."
     return 1
   else
     sshHost="$1"
@@ -75,7 +75,7 @@ step_10_info() {
   echo "Send command(ssh)/file(scp) list to remote(s)"
   echoinfo "[USER:HOST] and [PORT] are overwritten by \"host\" command from <CMDLIST>"
 }
-step_10_alias() { ALIAS="sendlist"; }
+step_10_alias() { echo "sendlist"; }
 step_10() {
   shift
   aList=$1
@@ -115,11 +115,11 @@ parseList() {
 
   if [ -z "$1" ] || [ ! -f "$1" ]; then
     if [ -z "$1" ]; then
-      echoerr " [E] No Command list found"
+      error -e "No Command list found"
     else
-      echoerr " [E] Command list not found: $1"
+      error -e "Command list not found: $1"
     fi
-    if [ ! -z "$1" ] && [ $DRY == 0 ] && [ $QUIET == 0 ] ; then
+    if [ ! -z "$1" ] && dry || interactive ; then
       read -p "     Create template there y/[n]? " answer
       case "$answer" in
         y|Y)
@@ -132,7 +132,7 @@ parseList() {
     return 1
   fi
 
-  echoseq " [I] Parsing $(realpath $1) ..."
+  info "Parsing $(realpath $1) ..."
   local line=1
   # Working loop without ssh "stealing standard input" by
   # https://unix.stackexchange.com/questions/24260/reading-lines-from-a-file-with-bash-for-vs-while
@@ -184,15 +184,15 @@ parseList() {
     esac
     getReturn
     if [ $? -ne 0 ] ; then
-      echoerr -e " [E] $line:$errorMsg"
-      if [ $QUIET -eq 0 ] ; then
+      error -e -e " [E] $line:$errorMsg"
+      if interactive ; then
         endReturn -f "Stop on first error"
       fi
     fi
 
     ((line++))
   done 3<"$1"
-  echoseq " [I] Parsed $((--line)) lines"
+  info "Parsed $((--line)) lines"
 }
 
 listFileTemplate="# following files are send to host given on command line
@@ -210,5 +210,5 @@ f|/sourcedir/sourcefile|/destdir/destfile
 f|/sourcedir/sourcefile|/destdir/destfile
 c|/destdir2/update.sh"
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . sequencer.sh
diff --git a/seqs/torrentwatch.sh b/seqs/torrentwatch.sh
index cddea07..f820a2f 100755
--- a/seqs/torrentwatch.sh
+++ b/seqs/torrentwatch.sh
@@ -18,12 +18,12 @@ CONFIG=0
 CONFIG_FILE_NAME="${toolName}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
   else
-    [ $DRY -eq 0 ] && return 1
+    dry || return 1
   fi
   toolConfigLoc=`eval echo "$TWXA_CONFIG_LOC"`
   toolConfig="$toolConfigLoc/config_cache/$toolConfigName"
@@ -39,7 +39,7 @@ step_config() {
 }
 
 step_1_info() { echo "Install $toolName [VERSION]"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   shift
   if [ ! -z $1 ] ; then
@@ -49,7 +49,7 @@ step_1() {
 }
 
 step_2_info() { echo "Setup git repository at $toolGitLoc [VERSION e.g. 1.4.1]"; }
-step_2_alias() { ALIAS="git"; }
+step_2_alias() { echo "git"; }
 step_2() {
   shift
   if [ ! -e "$toolGitLoc/.git" ] ; then
@@ -67,11 +67,11 @@ step_2() {
 }
 
 step_20_info() { echo "Backup $toolName"; }
-step_20_alias() { ALIAS="backup"; }
+step_20_alias() { echo "backup"; }
 step_20() {
   shift
   if [ ! -e "$toolConfigLoc" ] ; then
-    echoerr " [E] No installation found"
+    error -e "No installation found"
     return 1
   fi
 
@@ -115,7 +115,7 @@ step_20() {
 }
 
 step_30_info() { echo "Upgrade $toolName [VERSION]"; }
-step_30_alias() { ALIAS="upgrade"; }
+step_30_alias() { echo "upgrade"; }
 step_30() {
   shift
   if [ ! -z $1 ] ; then
@@ -124,7 +124,7 @@ step_30() {
 
   #step backup
   if [ $? -ne 0 ]; then
-    echoerr " [E] Backup failed. Aborting upgrade."
+    error -e "Backup failed. Aborting upgrade."
     return 1
   fi
 
@@ -143,5 +143,5 @@ step_30() {
   exe chown -R www-data: "$toolConfigLoc/*_cache"
 }
 
-VERSION_SEQREV=11
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/transmission.sh b/seqs/transmission.sh
index 8fdb4cd..1b77eb9 100755
--- a/seqs/transmission.sh
+++ b/seqs/transmission.sh
@@ -17,20 +17,20 @@ SCRIPT_NAME=${SCRIPT_NAME%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   if [ $? -eq 0 ] ; then
     CONFIG=1
   else
     # End if no configuration file exists
-    [ $DRY -eq 0 ] && return 1
+    dry || return 1
   fi
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
   return 0
 }
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install $toolDeps $APTOPT
@@ -42,7 +42,7 @@ step_1() {
 }
 
 step_10_info() { echo "Setup blocklist update cron job"; }
-step_10_alias() { ALIAS="bllupdate"; }
+step_10_alias() { echo "bllupdate"; }
 step_10() {
   addConf -s "$TRDA_REMOTE_AUTH" "$TRDA_REMOTE_AUTH_LOC"
   [ $? -eq 0 ] && exe chmod 600 "$TRDA_REMOTE_AUTH_LOC"
@@ -51,7 +51,7 @@ step_10() {
 }
 
 step_11_info() { echo "Setup remote authentication for current user (~/.netrc)"; }
-step_11_alias() { ALIAS="netrcauth"; }
+step_11_alias() { echo "netrcauth"; }
 step_11() {
   local lRemoteAuth="$(realpath ~/.netrc)"
   if [ ! -f "$lRemoteAuth" ]; then
@@ -61,7 +61,7 @@ step_11() {
 }
 
 step_12_info() { echo "Add ufw rules for rpc and peer port (default 9091 and 51413)"; }
-step_12_alias() { ALIAS="ufw"; }
+step_12_alias() { echo "ufw"; }
 step_12() {
   local trdaRpcPort=9091
   exe ufw allow in on eth0 to any port $trdaRpcPort proto tcp comment "Transmission rpc"
@@ -70,9 +70,9 @@ step_12() {
 }
 
 step_20_info() { echo "Configuration notes"; }
-step_20_alias() { ALIAS="notes"; }
+step_20_alias() { echo "notes"; }
 step_20() {
-  outColor green
+  color green
   cat <<NOTES_EOF
 [I] Change rpc password
     1) Make sure $toolName service is stopped before editing the configuration file.
@@ -112,32 +112,32 @@ NOTES_EOF
 }
 
 step_50_info() { echo "List all available torrents"; }
-step_50_alias() { ALIAS="list"; }
+step_50_alias() { echo "list"; }
 step_50() {
   step netrcauth
-  outColor green
+  color green
   exe "$toolRemote" -l
 }
 
 step_52_info() { echoinfoArgs "<TORRENT ID>"; echo "List information about a torrent"; }
-step_52_alias() { ALIAS="info"; }
+step_52_alias() { echo "info"; }
 step_52() {
   shift
   endCheckEmpty 1 "Id must not be empty"
 
   step netrcauth
-  outColor green
+  color green
   exep "\"$toolRemote\" -t$1 -i | less"
 }
 
 step_54_info() { echo "$toolName status"; }
-step_54_alias() { ALIAS="status"; }
+step_54_alias() { echo "status"; }
 step_54() {
   step netrcauth
-  outColor green
+  color green
   exe "$toolRemote" -si
   exe "$toolRemote" -st
 }
 
-VERSION_SEQREV=13
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/tvheadend.sh b/seqs/tvheadend.sh
index 96a92a3..df74ce5 100755
--- a/seqs/tvheadend.sh
+++ b/seqs/tvheadend.sh
@@ -3,7 +3,7 @@
 toolName="Tvheadend"
 
 step_1_info() { echo "Apt - setup $toolName repository"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local sourceList="/etc/apt/sources.list.d/tvheadend.list"
   local sourceEntry="deb https://apt.tvheadend.org/stable raspbian-stretch main"
@@ -47,6 +47,6 @@ step_99() {
   endReturn
 }
 
-VERSION_SEQREV=8
+readonly sqr_minVersion=16
 
 . sequencer.sh
diff --git a/seqs/ufw.sh b/seqs/ufw.sh
index 51b7463..6775b78 100755
--- a/seqs/ufw.sh
+++ b/seqs/ufw.sh
@@ -18,10 +18,10 @@ CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 #}
 
 step_1_info() { echo "Install $toolName and allow ssh access"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   local aptOpt=
-  if [ $QUIET -ne 0 ];then
+  if quiet;then
     aptOpt="-y"
   fi
   exe apt install $toolDeps $aptOpt
@@ -34,7 +34,7 @@ step_2() {
 }
 
 step_20_info() { echo "Enable mail server essentials"; }
-step_20_alias() { ALIAS="mailserver"; }
+step_20_alias() { echo "mailserver"; }
 step_20() {
   exe ufw allow "Postfix"
   exe ufw allow "Postfix SMTPS"
@@ -45,11 +45,11 @@ step_20() {
 }
 
 step_22_info() { echoinfoArgs "[IP]"; echo "Deny multicast from gateway"; }
-step_22_alias() { ALIAS="multicast"; }
+step_22_alias() { echo "multicast"; }
 step_22() {
   shift
   if [ -z $1 ] ; then
-    echoerr " [E] No [IP} specified"
+    error -e "No [IP} specified"
     return 1
   fi
 
@@ -64,14 +64,14 @@ step_24_info() {
   echoinfo "  139  : Cifs version 1.0"
   echoinfo "  445  : Cifs version 2.0+"
 }
-step_24_alias() { ALIAS="cifs"; }
+step_24_alias() { echo "cifs"; }
 step_24() {
   shift
   local destIp=$1
   local ipregex='^[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\.[0-2]*[0-9]{1,2}\/*[0-9]*$'
   endCheckEmpty destIp "No IP provided"
   if [[ ! $1 =~ $ipregex ]]; then
-    echoseq " [E] No valid IP provided"
+    error "No valid IP provided"
     return 1
   fi
   local destPort=445
@@ -80,7 +80,7 @@ step_24() {
       destPort=$2;;
     "");; # Set default
     *)
-      echoerr " [E] Invalid port."
+      error -e "Invalid port."
       return 1;;
   esac
 
@@ -88,7 +88,7 @@ step_24() {
 }
 
 step_26_info() { echo "Basic secure VPN setup"; }
-step_26_alias() { ALIAS="vpn"; }
+step_26_alias() { echo "vpn"; }
 step_26() {
   exe ufw --force reset
   exe ufw allow in on eth0 to any port 22 comment "ssh"
@@ -107,5 +107,5 @@ step_26() {
   exe ufw status verbose
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/vim.sh b/seqs/vim.sh
index 5a947a2..1c32b4e 100755
--- a/seqs/vim.sh
+++ b/seqs/vim.sh
@@ -14,31 +14,31 @@ SCRIPT_NAME=${SCRIPT_FILE%%.*}
 CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
 CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 
-step_config() {
+seq_config() {
   ## or to use sequencer api with global config file:
   #initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
   #if [ $? -eq 0 ] ; then
   #  CONFIG=1
   #else
   #  # End if no configuration file exists
-  #  [ $DRY -eq 0 ] && return -1
+  #  dry || return -1
   #fi
 
   ## Apt cmdline option to suppress user interaction
-  [ $QUIET -ne 0 ] && APTOPT="-y"
+  quiet && APTOPT="-y"
 
   ## Return of non zero value will abort the sequence
   return 0
 }
 
 step_1_info() { echo "Install $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt install vim $APTOPT
 }
 
 step_2_info() { echo "Installing indentation script $seqVimIndentLoc"; }
-step_2_alias() { ALIAS="setup"; }
+step_2_alias() { echo "setup"; }
 step_2() {
   if [ ! -e "$seqVimIndentLoc" ]; then
     exe mkdir -p $(dirname "$seqVimIndentLoc")
@@ -46,7 +46,7 @@ step_2() {
     wget --content-disposition $indentDownUrl
   fi
 
-  echoseq " [I] Installing indentation rules"
+  info "Installing indentation rules"
   addConf -c "$seqVimConfigBasic" "$seqVimConfigLoc"
 }
 seqVimIndentLoc="$HOME/.vim/indent/sh.vim"
@@ -55,17 +55,17 @@ filetype plugin indent on
 syntax on"
 
 step_3_info() { echo "Install editorconfig as vim 8 plugin"; }
-step_3_alias() { ALIAS="editorconfig"; }
+step_3_alias() { echo "editorconfig"; }
 step_3() {
   local ecDir="$HOME/.vim/pack/editorconfig/start"
   local ecUrl='https://github.com/editorconfig/editorconfig-vim.git'
   if [ ! -e "$ecDir" ]; then
-    echoseq " [I] Installing editorconfig plugin"
+    info "Installing editorconfig plugin"
     exe mkdir -p "$ecDir" 
     exe cd "$ecDir"
     exe git clone "$ecUrl"
   else
-    echoseq " [I] Upgrading editorconfig plugin"
+    info "Upgrading editorconfig plugin"
     exe cd "$ecDir"
     exe git pull 
   fi
@@ -73,7 +73,7 @@ step_3() {
 
 step_10_info() { echo "Setup $HOME/.vimrc globaly to use spaces and indent 2"; }
 step_10() {
-  echoseq " [I] Installing formating rules"
+  info "Installing formating rules"
   addConf -a "$seqVimConfig" "$seqVimConfigLoc"
 }
 seqVimConfig="set expandtab
@@ -81,5 +81,5 @@ set tabstop=2
 set softtabstop=2
 set shiftwidth=2"
 
-VERSION_SEQREV=15
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/webserver.sh b/seqs/webserver.sh
index cf37deb..e3c6137 100755
--- a/seqs/webserver.sh
+++ b/seqs/webserver.sh
@@ -8,8 +8,8 @@ phpName="php${phpVersion}"
 phpPackages="${phpName}-{fpm,gd,mysql,curl,xml,zip,intl,mbstring,bz2,ldap,apcu,bcmath,gmp,imagick,igbinary,redis,smbclient,cli,common,opcache,readline} imagemagick"
 
 aptOpt=
-step_config() {
-  if [ $QUIET -ne 0 ] ; then
+seq_config() {
+  if quiet ; then
     aptOpt="-y"
   fi
 }
@@ -19,17 +19,17 @@ step_1_info() {
   echo "Setup latest apt source list for $serverName"
   echoinfo "$serverSourceUrl"
 }
-step_1_alias() { ALIAS="setup"; }
+step_1_alias() { echo "setup"; }
 step_1() {
   shift
   local osRelease=$1
   endCheckEmpty osRelease "Debian release not provided"
 
-  echoseq " [I] Setup apt source for $serverName $serverSourceUrl"
+  info "Setup apt source for $serverName $serverSourceUrl"
   local srvSource="deb $serverSourceUrl $osRelease nginx"
   addConf -s "$srvSource" "$serverSourceLoc"
   if [ $? -eq 0 ] ; then
-    echoseq " [I] Get repository key for $serverSourceUrl"Y
+    info "Get repository key for $serverSourceUrl"Y
     exe apt install gnupg $aptOpt
     exe apt-key adv --keyserver keyserver.ubuntu.com --recv-keys ABF5BD827BD9BF62
   fi
@@ -40,7 +40,7 @@ step_2_info() {
   echo "Installation of $serverName packages:"
   echoinfo "$serverPackages"
 }
-step_2_alias() { ALIAS=install; }
+step_2_alias() { echo install; }
 step_2() {
   exe apt update
   exe apt install $serverPackages $aptOpt
@@ -64,8 +64,8 @@ step_3() {
   # create webroot 
   exe mkdir -p "$siteLetsencryptWww"
 
-  echoseq -n "Restarting Nginx..."
-  exe service nginx restart && echoseq "ok"
+  info -n "Restarting Nginx..."
+  exe service nginx restart && info "ok"
   endReturn -o $? "Failed to install $serverName"
 }
 snippetLetsencryptLoc="/etc/nginx/snippets/letsencrypt.conf"
@@ -86,7 +86,7 @@ step_4_info() {
   echo "Installation of $phpName packages:"
   echoinfo "$phpPackages"
 }
-step_4_alias() { ALIAS="php"; }
+step_4_alias() { echo "php"; }
 step_4() {
   exe apt install $(eval echo $phpPackages) $aptOpt
 }
@@ -157,12 +157,12 @@ step_5() {
   exe sed -i 's/pm.max_spare_servers =.*/pm.max_spare_servers = '$PMaxSS'/' "$phpPoolConfigLocation"
   exe sed -i "s/;pm.max_requests =.*/pm.max_requests = 1000/" "$phpPoolConfigLocation"
 
-  echoseq -n "Restarting ${phpName} ... "
-  exe service ${phpName}-fpm restart && echoseq "ok"
+  info -n "Restarting ${phpName} ... "
+  exe service ${phpName}-fpm restart && info "ok"
 }
 
 step_6_info() { echo "Installation notes"; }
-step_6_alias() { ALIAS="notes"; }
+step_6_alias() { echo "notes"; }
 step_6() {
   cat <<NOTES_EOF
 # Set user to www-data on debian an tune performance a bit
@@ -179,5 +179,5 @@ events {
 NOTES_EOF
 }
 
-VERSION_SEQREV=14
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/webserverUbuntu.sh b/seqs/webserverUbuntu.sh
index e028ffa..610777d 100755
--- a/seqs/webserverUbuntu.sh
+++ b/seqs/webserverUbuntu.sh
@@ -10,7 +10,7 @@ step_1_info() {
   echo "Installation of $serverName packages:"
   echoinfo "$serverPackages"
 }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt update
   exe apt install $serverPackages
@@ -92,5 +92,5 @@ step_4() {
   echo "ok"
 }
 
-VERSION_SEQREV=10
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh
diff --git a/seqs/wireguard.sh b/seqs/wireguard.sh
index d0ff4a0..0c53df5 100755
--- a/seqs/wireguard.sh
+++ b/seqs/wireguard.sh
@@ -24,7 +24,7 @@ CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"
 #}
 
 step_1_info() { echo "Prepare installation of $toolName"; }
-step_1_alias() { ALIAS="install"; }
+step_1_alias() { echo "install"; }
 step_1() {
   exe apt install raspberrypi-kernel-headers
   endReturn -o $? "Installation of kernel headers failed"
@@ -40,7 +40,7 @@ Pin-Priority: 150"
 step_2_info() { echo "Installing $toolName"; }
 step_2() {
   local aptOpt=""
-  if [ $QUIET -ne 0 ] ; then
+  if quiet ; then
     aptOpt="-y"
   fi
   exe apt install $toolName $aptOpt
@@ -50,7 +50,7 @@ step_3_info() {
   echo "Enable ipv4 forwarding to allow local access via VPN"
   echoinfo "(may be skipped)"
 }
-step_3_alias() { ALIAS="ipv4"; }
+step_3_alias() { echo "ipv4"; }
 step_3() {
   exe perl -pi -e 's/#{1,}?net.ipv4.ip_forward ?= ?(0|1)/net.ipv4.ip_forward = 1/g' /etc/sysctl.conf
 }
@@ -61,19 +61,19 @@ step_4() {
 }
 
 step_10_info() { echo "Start default configuration $toolDefaultConf"; }
-step_10_alias() { ALIAS="start"; }
+step_10_alias() { echo "start"; }
 step_10() {
   exe wg-quick up wg0
 }
 
 step_12_info() { echo "Stop default configuration $toolDefaultConf"; }
-step_12_alias() { ALIAS="stop"; }
+step_12_alias() { echo "stop"; }
 step_12() {
   exe wg-quick down wg0
 }
 
 step_14_info() { echo "Enable default configuration $defaultConfLoc"; }
-step_14_alias() { ALIAS="enable"; }
+step_14_alias() { echo "enable"; }
 step_14() {
   if [ ! -r "$defaultConfLoc" ] ; then
     endReturn -o 1 "Default configuration \"$defaultConfLoc\" not found"
@@ -89,5 +89,5 @@ step_20() {
 }
 
 
-VERSION_SEQREV=11
+readonly sqr_minVersion=16
 . /usr/local/bin/sequencer.sh