Group Merged Object Merge Paths: Properties Tab

The Merge Paths checkbox merges any overlapped openings into one opening.

Click Merge Paths to merge any overlapping openings.

Uncheck Merge Paths to group any overlapped openings but not merge them together. 

This is useful if the user wants to bring the overlapped openings into Trace to manually merge them as desired.

The objects contained within this merged object is listed in the Openings panel.

If you add another object and merge it with the existing merged object, the new object will be listed as part of a new merged object.