[negfrequency]

I myself would have shot for the shell command in a standard.ipt. Just a remove face and a thickness means that you dont have to measure out the rectangle on the surface, and if left with a whole to deep in the bottom, it could have just been a move face upwards.

A sheetmetal as previously mentioned would have to have been extremely obease to look like that. However, my knowledge with sheetmetal.ipt files is limited, and i am actually going to go flirt with it right now because it sounds more useful than i previously inferred.