- made all TclCommands not to be plotted automatically

- made sure that all TclCommands are not threaded

tclCommands/TclCommandBbox.py

@@ -90,6 +90,6 @@ class TclCommandBbox(TclCommand):
                     bounding_box = bounding_box.envelope
                 geo_obj.solid_geometry = bounding_box
 
-            self.app.new_object("geometry", args['outname'], geo_init)
+            self.app.new_object("geometry", args['outname'], geo_init, plot=False)
         except Exception as e:
             return "Operation failed: %s" % str(e)