that square one sure looks alot like the square selection file I once made long ago, fun fact people you can use up to 3 different selection circles, by naming them each the small the medium and the large file names, for example, in my map, my smallest selection circle was a square, the next one up medium was a pentagon, and the largest selection circle was a hexagon.
so choose you're favoured 3 wisely, there is a limit.