Have the ability to adjust the x, y position of elements in a Supertile, not just drag to move. Having the option to set elements in an exact spot. It is helpful if you are building multiple tiles that have the same elements and want the items to all be located the same. It would also be helpful when wanting to make adjustments to the elements.
Even if it would be as simple as just displaying the top and left coordinates of each element when you click on them that way you can make sure that you’re putting them exactly where you want them. Since these values are already being captured and stored it should be not much trouble to display those values.