A module to toggle between two layouts.

You can use this module with the following in your xmonad.hs:

import XMonad.Layout.ToggleLayouts

Then edit your layoutHook by adding the ToggleLayouts layout:

myLayout = toggleLayouts Full (Tall 1 (3/100) (1/2)) ||| etc..
main = xmonad def { layoutHook = myLayout }

For more detailed instructions on editing the layoutHook see the tutorial and XMonad.Doc.Extending.

To toggle between layouts add a key binding like

   , ((modm .|. controlMask, xK_space), sendMessage ToggleLayout)

or a key binding like

   , ((modm .|. controlMask, xK_space), sendMessage (Toggle "Full"))

For detailed instruction on editing the key binding see:

the tutorial.