@gaieus said: Hi Gani, With the rotate tool (rotating a single "hole" around the center of that disk), you can make copies (so called "radial arrays") if you press the Ctrl key (same with the move tool - called "linear array"). Here is the help center article: http://support.google.com/sketchup/bin/answer.py?hl=en&answer=94896 Now if you make the first hole into a component that can also cut a hole automatically, all the copies on that same plane will behave the same way. Hi Gaieus: Thanks for your tip. It was very useful and I was able to do what I wanted. Gani -