Keyboard layout in a X-desktop

'setxkbmap' allows to set multiple keyboard layout together with a switching mechanism. The Archlinux-wiki Write provides excellent information about this subject.

For example, making the US-American and the Swiss keyboard layout available and having Alt+Caps switch between them, the following is written into '~/.X.d/setxkbmap'.

setxkbmap us,ch -option grp:alt_caps_toggle