Press 0 to go to editor mode Move using wasd or arrow keys. When in editor mode, to switch blocks press 1 2 3 or 4 multiple times to change the block to change you level press l while in editor mode and then type in the level number. When you create a new level, it will be a copy of your previous level you were on so do not panic. Press r to reset the level, and then enter the width and height you want.
