diff --git a/src/Mod/OpenSCAD/OpenSCADCommands.py b/src/Mod/OpenSCAD/OpenSCADCommands.py
index 778e310a7..5b8edd434 100644
--- a/src/Mod/OpenSCAD/OpenSCADCommands.py
+++ b/src/Mod/OpenSCAD/OpenSCADCommands.py
@@ -211,7 +211,7 @@ class AddSCADTask:
         return True
 
     def addelement(self):
-        scadstr=unicode(self.form.textEdit.toPlainText())
+        scadstr=unicode(self.form.textEdit.toPlainText()).encode('utf8')
         asmesh=self.form.checkboxmesh.checkState()
         import OpenSCADUtils, os
         extension= 'stl' if asmesh else 'csg'
diff --git a/src/Mod/OpenSCAD/OpenSCADFeatures.py b/src/Mod/OpenSCAD/OpenSCADFeatures.py
index 44fcd5416..ec71a1425 100644
--- a/src/Mod/OpenSCAD/OpenSCADFeatures.py
+++ b/src/Mod/OpenSCAD/OpenSCADFeatures.py
@@ -75,6 +75,9 @@ class ViewProviderTree:
             objs.extend(self.Object.Objects)
         if hasattr(self.Object,"Components"):
             objs.extend(self.Object.Components)
+        if hasattr(self.Object,"Children"):
+            objs.extend(self.Object.Children)
+
         return objs
    
     def getIcon(self):
@@ -215,6 +218,19 @@ static char * openscadlogo_xpm[] = {
 "4444444444444444"};
 """
 
+class OpenSCADPlaceholder:
+    def __init__(self,obj,children=None,arguments=None):
+        obj.addProperty("App::PropertyLinkList",'Children','OpenSCAD',"Base Objects")
+        obj.addProperty("App::PropertyString",'Arguments','OpenSCAD',"Arguments")
+        obj.Proxy = self
+        if children:
+            obj.Children = children
+        if arguments:
+            obj.Arguments = arguments
+             
+    def execute(self,fp):
+        import Part
+        fp.Shape = Part.Compound([]) #empty Shape
 
 class MatrixTransform:
     def __init__(self, obj,matrix=None,child=None):
diff --git a/src/Mod/OpenSCAD/OpenSCADUtils.py b/src/Mod/OpenSCAD/OpenSCADUtils.py
index e395b5620..7c1437e95 100644
--- a/src/Mod/OpenSCAD/OpenSCADUtils.py
+++ b/src/Mod/OpenSCAD/OpenSCADUtils.py
@@ -109,9 +109,9 @@ def callopenscad(inputfilename,outputfilename=None,outputext='csg',keepname=Fals
             else:
                 outputfilename=os.path.join(dir1,'output-%d.%s' % \
                     (int(time.time()*100) % 1000000,outputext))
-            check_output2([osfilename,'-o',outputfilename, inputfilename],\
-                stderr=subprocess.STDOUT)
-            return outputfilename
+        check_output2([osfilename,'-o',outputfilename, inputfilename],\
+            stderr=subprocess.STDOUT)
+        return outputfilename
 
 def callopenscadstring(scadstr,outputext='csg'):
     '''create a tempfile and call the open scad binary
diff --git a/src/Mod/OpenSCAD/importCSG.py b/src/Mod/OpenSCAD/importCSG.py
index 8b973ac4c..c08d5aeff 100644
--- a/src/Mod/OpenSCAD/importCSG.py
+++ b/src/Mod/OpenSCAD/importCSG.py
@@ -341,16 +341,32 @@ def p_operation(p):
               | projection_action
               '''
     p[0] = p[1]
-
+    
+    
 def p_not_supported(p):
     '''
-    not_supported : hull LPAREN RPAREN OBRACE block_list EBRACE
+    not_supported : hull LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE
                   | minkowski LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE
-                  | glide LPAREN RPAREN OBRACE block_list EBRACE
+                  | glide LPAREN keywordargument_list RPAREN OBRACE block_list EBRACE
                   '''
-    if gui:
+    if gui and not FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/OpenSCAD").\
+            GetBool('usePlaceholderForUnsupported'):
         from PyQt4 import QtGui
         QtGui.QMessageBox.critical(None, unicode(translate('OpenSCAD',"Unsupported Function"))+" : "+p[1],unicode(translate('OpenSCAD',"Press OK")))
+    else:
+        from OpenSCADFeatures import OpenSCADPlaceholder
+        newobj=doc.addObject("Part::FeaturePython",p[1])
+        OpenSCADPlaceholder(newobj,p[6],str(p[3]))
+    if gui:
+        if FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/OpenSCAD").\
+            GetBool('useViewProviderTree'):
+            from OpenSCADFeatures import ViewProviderTree
+            ViewProviderTree(newobj.ViewObject)
+        else:
+            newobj.ViewObject.Proxy = 0
+        #don't hide the children
+    p[0] = [newobj]
+
     
 def p_size_vector(p):
     'size_vector : OSQUARE NUMBER COMMA NUMBER COMMA NUMBER ESQUARE'