Create new sprites on the create new sprite menu. Program sprites by clicking program a sprite. (In the help menu it isn't fully updated but if you wanna see all the current commands and how they work click see inside and go to AddCommand object.)
Known bugs: Sometimes hovering one sprite over the other will cause the one your hovering over to delete. Sometimes the sprite wont be created (Just click to create it again and it will work.) May be other bugs be aware of that. Other stuff: Feel free to remix with your own sprites/commands! That would be pretty cool.