I found this by accident: If you click on a moveable piece and then hit 'r' on the keyboard, it multiplies the part so you have two. You can only get two, though, and if you click on one an hit 'r' again it goes back to one, and you have to repeat the process. As far as I know it doesn't screw up the game and applies to all parts. I will add more if I find anything else.
