Editing Mouse Controls (section)

==MacPyMol And PyMolX11 Hybrid==

We strongly recommend (require?) use of a three-button mouse with
MacPyMOL and PyMOLX11Hybrid.  However, it is possible to use MacPyMOL in
a limited way on Macs that have a single button mouse thanks to some
built-in mouse remapping in the Mac OS X GLUT implementation.  Her is
how that works...

If the Mac is hooked up to a 1-button mouse (only) when MacPyMOL or
HybridX11PyMOL are launched, then Mac OS X itself will furnish
translations as follows:

 Rotate:       Click & Drag
 XY-Translate: Option-Click & Dreg
 Zoom:         Control-Click & Drag
 Select:       Click & Release
 Box-Select:   Shift-Click & Drag
 Box-Deselect: Shift-Option-Click & Drag
 Clipping:    Control-Shift-Click & Drag with...
  * near plane controlled by vertical motion
  * far plane controlled by horizontal motion

Note that not all mouse actions are possible with a one-button mouse.
For example, I don't think molecular editing is possible with a
one-button mouse.