fbxkb is a freedesktoporg freedesktop.org NETWM compliant keyboard indicator and switcher. It shows a flag of current keyboard in a panels systray/panel area and allows you to switch to another one.

Install an appropriate software package-

fbxkb-0.4 PET thread (non autostart)

fbxkb-0.4 PET post (autostart)

fbxkb-1.0 PET post (autostart)

HowToChangeAddKeyboardLayout How To Add/Change Keyboard Layout

InputDevices Input Device Index - more input options

NativeLanguageSupport Language Support Index

fbxkb homepage

fbxkb-0.4 Country keyboard indicator thread

Add extra language keyboard layout, switchable

NETWM - freedesktop.org spec