Use the controls, the mouse or the keyboard shortcuts to shift the protein.

Use ⌘-f to switch from window to full screen (and back!).

Use ⌘-r to reload the protein.

With a two button mouse with clickable scroll wheel, you can, in normal and in full screen mode:

• press left button and drag to rotate
• press right button and drag to shift
• turn scroll wheel to zoom
• double click left button to change model
• double click right button to toggle 'Display Backbone Only'
• press and turn scroll wheel to change ball size in 'Ball and Stick' model