I tried doing a search for this and didn't see anything, so here goes. When I was messing around a little with stamps I wondered if there was a way to rotate or flip the copied item or stamp. So I looked around and didn't find anything.
My suggestion is that if its possible, to have the stamp/paste box be rotateable or flipped. Obviously it would be limited to 90 degree rotations but it would definetly help alot in moving things around or creating symmetry.