keycode  26 = e E EuroSign EuroSign
keycode  30 = u U udiaeresis Udiaeresis
keycode  32 = o O odiaeresis Odiaeresis
keycode  38 = a A adiaeresis Adiaeresis
keycode  39 = s S ssharp ssharp

!Map "right Alt" to activate the äöüÖÜÄß above
keycode 108 = Mode_switch