Adding Custom Settings

[Anonymous]

Hi
how can I enhance a library part imported from a gsm file, filling in the "Custom Settings" tab, that is visible from the "Object Selection Settings" dialog?

I attach a picture of such an example from the Designer Couch 18 from the AC18 built in library parts.



I understand the there is a GDL interface script when I open up the couch object in the GDL editor, but when I save the couch part using
Libraries And Objects->Save Selection as-> Object all these scripts get removed. So I can not add to the existing Customs Settings UI anything.

Can such an addition also be done programmatically if its not possible to do it by hand?

Thanks
Dimi