@tig said: I expect that you have already tried Model Info > Statistics > Fix Problems... ? [and Purge Unused...] Yes, no problems found, purged and same results.

Thanks for all the advice. I have a couple photos I will bring my model into. The videos and text links were extremely helpful. Regards, John

@tig said: @wolverine said: Dilemma - have a model of a log cabin I've constructed (8" "D" logs, all individual, sixteen courses high). Now, I've got to get door and window openings in. Best methods for doing so? Thanks ! Make a grouped punching shape for the door as a box that extends through the wall, move it into place. Perfect, many thanks, worked great.