We use a really old version of AutoCAD in my drafting class. I thought I'd reporoduce it on Scratch. I know is faaaar from acting like a real AutoCAD install, but it's a start ;) The menu bar and buttons do absoloutly nothing, they are purely cosmetic. To use the line command (draw), use the arrow keys. To temporarily stop drawing (pen up), press the "Q" key. To resume drawing (pen down), press the "A" key. EDIT: The menu structure looks alot messier than it did in the Scratch app....