When the pointer passes over an area that contains multiple objects, use the QuickPick feature to help you select the specific object you want. QuickPick also applies to display sets. If you hover over an object that is in multiple display sets, QuickPick displays for you to select the required display set.
As you move your cursor over each number, the object corresponding to that number is highlighted. Click on the number of the object to which you want to fit.
Use CTRL+ with QuickPick to select multiple objects.