I can't believe that it's already been 99 days since the demo of this level editor was released. The next version I'm planning on releasing will be Demo 2. One of the improvements planned to be included in that version will be a drag and drop interface, where you click on the tile type you want to place, drag over where you want to place it, and then click to a place a tile over that location. It should work better than the method used in the Demo version for placing tiles.