Click on the green flag. 1 will be added to the views variable!!! Then you can draw. To pick a colour, you just have to put your mouse onto one of the squares (I've tried making it so a colour gets picked when you click on them, but it didn't work). Then click and hold to draw (quite obviously). To clear, put your mouse onto the 'CLEAR' block. To make the pen size bigger, press the right arrow key, and to make it smaller, press the left arrow key. Simple!!!
To the people who saw this project before, I changes the list because it wasn't working. Thanks to yasyas5. I just looked inside to see why the views variable wasn't working, and came up with another idea. Then yasyas5 edited hers, and we ended up having exactly the same project. So I though of turning it into a 'Draw' project. Also, credit to snowdrop246, I used one of her sprites and some of her scripts.