Restore Active View displays the view previously stored with Save Active View.
The viewport to be restored is displayed in the menu item (for example, "Restore Active Perspective View").
The active view is restored if the same viewport and layout are active.
If an active view won’t restore with this command, check the following:
Restore Active View. This option is available only in a viewport with a saved view.
If you're not sure whether a viewport has a saved view, check the Views menu. Restore Active View is unavailable unless a view is saved in the active viewport.