Tools -
Listview - Show:
Show:
set the hidden flag to false, making it so that the selected objects are
displayed (assuming that type is shown)
Show All:
set the hidden flag of all objects to false, so that all objects will be
displayed (assuming their respective type is shown)
Show Only
Selected: hide all objects other than the ones selected, and show all
objects selected
Hide:
hide the selected listview objects in the graphics windows
User Manual