Page Comparison

Hold down shift key and select two or more objects.

Click on the Advanced tab.

Select Group Selection to lock group together.

Objects are now grouped as a single entity.

Overlapping objects are merged together.

Using group selection is different than just selecting several objects to form a group. Group Selection locks the group together, and if an object is selected outside the group, it does not ungroup the grouped openings.

Select Ungroup Selection to unlock the group.