Rotate (tumble) perspective views.
Pan parallel views.
Shift +
Press Shift to constrain to view rotation to horizontal or vertical.
The direction is determined by the relative location of the cursor to the point where the right mouse button was pressed down. If the cursor is more to the left or right than up or down, the rotation is locked horizontally, and vice versa.
(Wheel)
Zoom view in/out.
(Click)
Pop up toolbar.
Next viewport active. Cycles through layout pages if a layout is active and through model viewports if model space is active.
Pan view out.
Pan view in.
Alt + 
Pan view in/out.
Alt +
Pan view in/out.
Shift +
Pan any view.
Zoom view in/out.
TiltView right.
TiltView left.
Adjust camera lens length in a perspective view.
Adjust camera lens length in a perspective view (toward telephoto).
Adjust camera lens length in a perspective view (toward wide angle).
+ Shift
In addition, press Shift to lock the camera rotation horizontally or vertically.
The direction is determined by the relative location of the cursor to the point where the right mouse button was pressed down. If the cursor is more to the left or right than up or down, the rotation is locked horizontally, and vice versa.
Adjust camera lens length in a perspective view.
Force parallel view to rotate.
+ Shift
Constrain to view rotation to horizontal or vertical.
Release
