Any form of CAD program allows you to do that. If you know how to use it then you will never pick your nose again without a diagram. AutoCAD, I can't believe everybody doesn't have it, is just akin to using a snap on combination wrench vs. a rubber handled adjustable. If you can imagine a cookie cutter in your mind and you can draw a rectangle, then you get the point. Copying, modifying, moving, arrays etc. is ABCs. And it also allows you to design everything. Dimension, order, print. And it does things for you instantly no human can. You don't need a purchase order to sit down and make something. You can probably use paint. Just draw the appropriate size stock, create your pieces, copy, rotate, place. Peanuts.