To use this level editor, hop into the PROJECT editor, and just start changing all sorts of things. When changing tiles, change BOTH SPRITES!! It is very important because they work together and if they aren't both changed it'll cause all sorts of problems. Right now, the map is a fixed size which is the same as the Open World Alpha map size. To change tiles, use A and D, and to scroll use arrows. This project uses a snap to grid script which is derived from @griffpatch's script.