Greetings.
Enable "Exclude button" if drawing model file is already in "Copy" action.
Currently you can "Exclude" drawings before any "Copy" action is made, but after "Copy" action is made on drawing model files, "Exclude button" is disabled and you have to begin from the start (or re-use) if you want to "Exclude" drawings. Not a big problem on single files, but really annyoing if you copy whole assembly.
See the image below.

Best regards,
Rene Repina