Design Unit Properties Dialog Box (Shortcut Menu)
Allows you to view the name and type of the design unit and the files contained in the design unit. The source file for each design unit appears directly below the design unit in the Design Units list. The entity type is listed in parentheses next to the design unit and an abbreviation for the entity type appears on the icon next to the design unit name.
The Properties command is available for all design entities shown on the Hierarchy tab, and all of the files and design units shown on the Files and Design Units tabs. You can view design units only after you compile a design.