<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>I have a multi story building with different geometries on several floor. I know there is a way to draw the shells and then stack them, but do not remember how. Can anyone provide some guideance?</DIV>
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<DIV>Thanks!</DIV></div><br>
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