Index: sources/gui/qml/globals/Variables.qml
===================================================================
diff -u -r1a8e9578b27bb3877116675d0b2361ce4f5b5539 -rac23b968f565c2beeb153ca2d554b8f868634512
--- sources/gui/qml/globals/Variables.qml	(.../Variables.qml)	(revision 1a8e9578b27bb3877116675d0b2361ce4f5b5539)
+++ sources/gui/qml/globals/Variables.qml	(.../Variables.qml)	(revision ac23b968f565c2beeb153ca2d554b8f868634512)
@@ -186,7 +186,17 @@
     readonly property int venousLimitStep       :  +10; ///< PRS356,PRS357 // has to be the same since it's on the same line scale
     readonly property int venousLimitGap        :  +30;
 
-    readonly property string notSetVariableText             : "__"
+    function notSetVariable(vVariable, vLength, vChar) {
+        let notSetVariableText = "_" //"‑" //"-"
+        if (vLength === 0 ) notSetVariableText = ""
+        if (vVariable)
+            return vVariable
+        else
+            if (vLength)
+                return notSetVariableText.repeat(vLength)
+            else
+                return notSetVariableText
+    }
 
     readonly property string preTreatmentStepLabelCreate            : qsTr("CREATE"   )
     readonly property string preTreatmentStepLabelConfirm           : qsTr("CONFIRM"  )