> And about the move of the 3 "points" before validate function?

This one is harder - I guess you mean that there would be a "done" button and the command would not exit until you pushed "Done"?

This would be a lot different than every other draw command - for instance should line add another step for "done" and let you move the 2 points for a line before you exit?

This would add an extra step to a lot of commands...

- Michael