Quick Menu
In the Figure Window, pressing a combination of shortcut keys will display a Quick Menu. This provides quick access to a selector, allowing you to switch views or display modes.
View Quick Menu
With the pointer inside a viewport, press Shift + W to bring up the Quick Menu for switching views for that viewport. Select one of the options to switch to that view.
Display Mode Quick Menu
With the pointer inside a viewport, press Shift + S to bring up the Quick Menu for changing display modes for that viewport. Select one of the options to change to that display mode.