As it says, this does not work for things that do not have a flat ground. This is because it will always fall to the y position you set it to. ·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.·.· Press the left and right arrow keys to go to the next/previous slide.
