Hello, how to handle, in the following question ? the issue is that I made some parts/assembleys whith several configurations, these ass./parts I use in other ass. and there I suppress some features/ or parts to leaf them temp. out. Is there a way to do this, whithout effecting the original part or ass. so can I close the door behind me, when the part or ass. is in ??? With frendly greetings, Paul van Uden