When selecting asteroids to put in a chart wheel, you can now have sets of asteroids. For example, you may sometimes wish to put Centaur objects or dwarf planets or some other set of asteroids in a wheel and you can assign this group of asteroids to a set and select the set. This is also a handy feature for selecting a group of asteroids that you have selected in one chart wheel and quickly select that set of asteroids in a different wheel style.