Okay,
and all of this seems like a lot more work than have an option for "visibility by group" or something like that.
I do have a "structural model" that I deleted or stripped unnecessary files from, but all of that requires "parallel updates" which is tedious and mind twisting as to which version goes where etc, once the model is finished and only minor revisions it seems to work okay,
I also do alot of working on a copy of a model, usually stripped down version, and get a component or group as I want it and then do a "paste in place". That keeps my "original" file which is burdened with components etc, from being altered or effected by my editing processes.
thanks for your insights and creative ideas.
I will look at giving them a try.
aloha
red