w a s d or arrow keys to move. 0 to access the Editor, click on a tile in the pallette to select a Tile, hover over the pallette and use w a s d or arrow keys to instead scroll the pallette, press 1, 2 or 2 to change layers while in the editor press the number that you previously pressed while in the editor again to toggle onion mode
thanks to @griffpatch_tutor for the tutorial and the asset starter project.
