Use WASD to move. To add a new point, press the plus button, then enter the X and Y coordinates. The points should appear on the screen and stay in the same place on the green layer.
I thought of most of this myself. There was a major problem at one point, but after reading an article on the scratch wiki I was able to fix it. This is more of a concept than a game. There is a glitch that I have not been able to fix! To keep track of the clones, I have used the variable CloneNum to give them all numbers. This variable is also very important in putting the clones in their proper place on the screen! Every time you make a point on the screen, CloneNum increases by one. Or at least it should. For some reason, if you make more than one point, CloneNum doubles! This causes the clones to be placed on the wrong part of the screen! If you think you can fix this problem, please leave an answer in the comment section. -------------------------------UPDATE-------------------------------------- The glitch has been fixed! Thanks to wilmackildonfilms with the suggestion of using variables instead of broadcasts, the concept now works smoothly.