How do you make a level in Platform Racing 2

Simply press level editor in the almost-bottom-left-hand-corner. If you are there and don't know what to do, simply press "BLOCKS" to place blocks, "LAYER 1" for still artwork, "LAYER 2" for moving artwork, "LAYER 3" for moving artwork as well, "BG" for backgrounds, and "SETTINGS" for stuff like what items will be in the |?| blocks, time, gravity, and what rank you have to be to play the level.
Hope this helped! ☺