Arrow keys/WASD to move. 0 to toggle the editor. Arrow keys/WASD to scroll the palette. Numbers 1-3 to toggle layers. O to toggle onion skinning. P to toggle "meta editor" thing and 1 in "meta editor" to add pins and x to delete pins. In editor, press space and move your mouse (you have to hold click to place) to do a cool trick
Thanks to @griffpatch for the tutorial.
