window casing offset AC12

[cremsberg]

I am having trouble controlling the exterior window casing on AC12 window. This one is a double-hung. I have no trouble with the interior casing. There is a "casing offset" parameter, but it seems not to have the effect that I need.

[Anonymous]

Please see this thread.
http://archicad-talk.graphisoft.com/viewtopic.php?p=126000&highlight=#126000
Peter Devlin