how to switch session as X window workspace?

[CHEN Cheng]

Hi folks,

Is it possible to switch between sessions by pressing 
Ctrl-Alt-Left or Ctrl-Alt-Right, like what we do in
Gnome (or KDE)?

Because I think it's safer to seperate root's windows
from a normal user's windows, which can also be done by
running multiple instances of putty or gnome-terminal,
but with less convenience.

I've googled a lot with no luck.


Thanks in advance,
Cheng