The items in this menu control
the visibility of various user interface elements, including the
Status Line, the Shelf, the Time Slider, and so on.
Hide All UI Elements
Hide all UI parts so
only the panels and menus are visible.
Show All UI Elements
Show all UI parts.
Restore UI Elements
Restores the visibility
of UI parts to their state before you selected Hide All UI Elements.
If certain parts were hidden before you selected Hide
All UI Elements, they will still be hidden.
