Menu : OBJECT

Command: Active/Passive

Shortcut : a

The command Active/Passive changes the state of the target object between active and passive. Passive items are indicated by the appearance of a hyphen (-) in front of their name.

Certain commands such as DISPLAYÞAll and SELECTÞCollect:Actives only apply to active objects. Passive objects would be ignored by these commands. Objects that are not of immediate interest should be made passive. They will then not normally be drawn on the screen.

For example, there might be a part of your model that has two design alternatives, both of which you have modeled. You could make the elements of one of the alternatives passive so that the second alternative can be seen on its own, and vice versa.