If too many objects are visible in a view, select the objects of interest and use the View menu > Show Selected Objects Only command to refresh the view so that only the selected items are visible in the window. If the view type in the window is changed (e.g., from a plan view to a 3D view), the originally selected items continue to be the only ones visible.
Note: Right clicking in the background of an active window will display a drop-down menu of commands, including Show Selected Objects Only. Selecting the View Selected Objects Only command accesses the same feature as the View menu > Show Selected Objects Only command.
See also