If you don't want to have to do (as your example stated) 10 things, each by hand, you could always combine the 10, then use the boolean (object + 10 things(now combined) = new object) If there are a lot of those kind of doorframes, then just duplicate, duplicate and duplicate some more. If i've misunderstood the problem, or re-stated the obvious, then I am sorry. Hopefully I have been useful even in the slightest!, Chris