#6 Switch desktop by mouse wheel

[Eugene Agafonov]

Derive from http://sourceforge.net/forum/forum.php?thread_id=1998664&forum_id=257054

> Is there a setting or module I could activate
> to be able to scroll virtual desktops when
> my mouse is over a blank space on the desktop
> and I scroll my mouse wheel, a la some Linux
> window managers?