[Windows/Linux Keystroke(s)] Shift + up arrow [Mac Keystroke(s)] Shift + up arrow [Result] Tilts the viewer toward “top-down” view. [Command] 
Tilt down
M o v e l e f t
M o v e r i g h t
M o v e u p
M o v e d o w n
R o t a t e c l o c k w i s e
R o t a t e c o u n t e r - c l o c k w i s e
T i l t u p
T i l t d o w n