21 Apr
2013
21 Apr
'13
1:41 p.m.
On 4/21/13, Jim Cheetham
If you want to continue treating the two monitors as a single 'desktop', one simple way would be to use new keybindings that change the contents of each screen at the same time -- the two screens are not really related to each other, but your new keybindings would move both of them together.
Sounds like a job for X.A.Workscreen http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Actions-Workscreen.html.