Click to place blocks. B to clear everything Press A to toggle placing things floating in air. Use z to go back a block/plant, x to go to the next block/plant Change the size with n and m. Use v to change scenes. Use c to go back a scene Things will fall in water. Stars will stay in the air. Blocks can stack, plants can not. Although it is ugly, there is a sky block for air building, whick is ugly in some scenes as well.