diff --git a/sequencer/sequencer.sh b/sequencer/sequencer.sh
index c33e9f9..3c5c76d 100755
--- a/sequencer/sequencer.sh
+++ b/sequencer/sequencer.sh
@@ -6,7 +6,7 @@
 
 ## Version information
 
-VERSION_REV=5
+VERSION_REV=6
 VERSION_MAJOR=0
 VERSION_MINOR=0
 
@@ -76,26 +76,56 @@ saveReturn() {
   fi
 }
 
-# endReturn [-f]
-#   -f : force exit with $ERNO without user input
+# endReturn [-f] [MESSAGE]
+#      -f : force exit with $ERNO without user input
+# MESSAGE : Custom error message
+#
 endReturn() {
-  if [[ ( $ERNO -ne 0 && $QUIET -ne 0 ) || ( $ERNO -ne 0 && ! -z $1 && $1 == "-f" ) ]] ; then
+  local forceExit=0
+  local endMessage=""
+
+  for arg in "$@" ; do
+    case "$1" in
+      -f)
+        forceExit=1
+        skipStep=0
+        shift
+        ;;
+      "")
+        break
+        ;;
+      *)
+        endMessage="$@"
+        break
+        ;;
+    esac
+  done
+
+  if [[ ( $ERNO -ne 0 && $QUIET -ne 0 ) || ( $ERNO -ne 0 && $forceExit -ne 0 ) ]] ; then
     echo
-    echo -e " [E] Return value $ERNO detected.\nAborting installation."
+    if [ "$endMessage" != "" ]; then
+      echo -e " [E] $endMessage"
+    else
+      echo -e " [E] Return value $ERNO detected.\n     Aborting installation."
+    fi
     exit $ERNO
   fi
   if [ $ERNO -ne 0 ] ; then
     echo
-    echo " [E] Return value $ERNO detected."
+    if [ "$endMessage" != "" ]; then
+      echo -e " [W] $endMessage"
+    else
+      echo " [W] Return value $ERNO detected."
+    fi
     read -p "End installation: [y]/n? " answer
     case $answer in
       [nN])
         echo
-        echo Continuing installation...
+        echo " [I] Continuing installation..."
         ;;
       *)
         echo
-        echo Installation aborted
+        echo " [E] Installation aborted"
         exit $ERNO; 
         ;;
     esac
@@ -355,7 +385,7 @@ displayHelp() {
     fi
     stepsFound=1
   done
-  
+
   if [ $stepsFound -eq 0 ] ; then
     echo -e "\n  It seems ${0##*/} was called directly."
     echo -e "  Please create a sequence script first.\n"