Bottom sliders to change brush, WASD to move, speed slider to change movement speed, Zoom slider to zoom. Press r to replay. Save and load to save and load. When saving, click save, and then open the editor, right click the list and click "export" this will save a file to your computer. To load, use the "import" option in the right-click and then click the load button.
I was told to get a whiteboard. I made one instead.