•WASD to move & SPACE to place a block. •Left and right arrow keys to cycle through the blocks. •R & T keys to rotate the blocks. (Press M to rotate it back to normal) •N key to switch dimensions. •U to UNDO what you've done. •Y to get your save code, Z to hide the save code. •CTRL / CMD + A to select the code, C to copy the code, and V to paste the code. Also you need to click the list for any of this to work. •To share your codes with others, go to this forum page: http://scratch.mit.edu/discuss/topic/79690/?page=1#post-688556