Hex Grid Editor Accuracy

In the Hex Grid editor you’re asked to place a dot on three vertices of a hex grid, all of them adjacent to the next. To do this there’s a small Cross that you place on those vertices. However, often that Cross is larger than the vertices and blots them out so you cannot accurately choose a vertices. This makes your hex grid less than accurate. Would it be possible to make a small hollow circle at the center of that cross so you can actually see the hex vertices upon which you are trying to center the cross?