Downloaded a copy of this program to try out. Wanted to draw up a few shapes to known dimensions. Amazes me the lack of intuition in the design. I click on a rectangle I have entered. I can reposition the polygon points to all sorts of weird undesired coordinates using the mouse but I can't do something as simple as type in the x y and z dimensions of my object to get it to scale. It will be faster to just go back to pencil and paper.