diff -r 92efd8fe3120 -r 533741e5075c editors/SFCViewer.py
--- a/editors/SFCViewer.py	Fri Oct 04 12:17:03 2013 +0200
+++ b/editors/SFCViewer.py	Wed Oct 09 10:57:20 2013 +0200
@@ -358,7 +358,7 @@
     def AddInitialStep(self, pos):
         dialog = SFCStepNameDialog(self.ParentWindow, _("Please enter step name"), _("Add a new initial step"), "", wx.OK|wx.CANCEL)
         dialog.SetPouNames(self.Controler.GetProjectPouNames(self.Debug))
-        dialog.SetVariables(self.Controler.GetEditedElementInterfaceVars(self.TagName, self.Debug))
+        dialog.SetVariables(self.Controler.GetEditedElementInterfaceVars(self.TagName, debug=self.Debug))
         dialog.SetStepNames([block.GetName() for block in self.Blocks if isinstance(block, SFC_Step)])
         if dialog.ShowModal() == wx.ID_OK:
             id = self.GetNewId()
@@ -380,7 +380,7 @@
         if self.SelectedElement in self.Wires or isinstance(self.SelectedElement, SFC_Step):
             dialog = SFCStepNameDialog(self.ParentWindow, _("Add a new step"), _("Please enter step name"), "", wx.OK|wx.CANCEL)
             dialog.SetPouNames(self.Controler.GetProjectPouNames(self.Debug))
-            dialog.SetVariables(self.Controler.GetEditedElementInterfaceVars(self.TagName, self.Debug))
+            dialog.SetVariables(self.Controler.GetEditedElementInterfaceVars(self.TagName, debug=self.Debug))
             dialog.SetStepNames([block.GetName() for block in self.Blocks if isinstance(block, SFC_Step)])
             if dialog.ShowModal() == wx.ID_OK:
                 name = dialog.GetValue()
@@ -437,7 +437,7 @@
                 dialog = ActionBlockDialog(self.ParentWindow)
                 dialog.SetQualifierList(self.Controler.GetQualifierTypes())
                 dialog.SetActionList(self.Controler.GetEditedElementActions(self.TagName, self.Debug))
-                dialog.SetVariableList(self.Controler.GetEditedElementInterfaceVars(self.TagName, self.Debug))
+                dialog.SetVariableList(self.Controler.GetEditedElementInterfaceVars(self.TagName, debug=self.Debug))
                 if dialog.ShowModal() == wx.ID_OK:
                     actions = dialog.GetValues()
                     self.SelectedElement.AddAction()
@@ -724,7 +724,7 @@
         else:
             dialog = SFCStepNameDialog(self.ParentWindow, _("Edit step name"), _("Please enter step name"), step.GetName(), wx.OK|wx.CANCEL)
             dialog.SetPouNames(self.Controler.GetProjectPouNames(self.Debug))
-            dialog.SetVariables(self.Controler.GetEditedElementInterfaceVars(self.TagName, self.Debug))
+            dialog.SetVariables(self.Controler.GetEditedElementInterfaceVars(self.TagName, debug=self.Debug))
             dialog.SetStepNames([block.GetName() for block in self.Blocks if isinstance(block, SFC_Step) and block.GetName() != step.GetName()])
             if dialog.ShowModal() == wx.ID_OK:
                 value = dialog.GetValue()