CEC - Change audio stream

Hi,

I’m using my Sony Remote to control the Vero4K+/OSMC.
Its working fine but I cant change audio stream using the Sony Remote. Changing subs, volume etc works.
Can any one tell me what I need to do to fix this?

Remote - RMT-TX100D
TV - KD-55X9005C
OSMC - 2018.12.-1 @ Vero 4K+

The keys transmitted via CEC are limited. Enable debug logging open a ssh shell and have tail -f .kodi/temp/kodi.log running. Then press the respective buttons on the remote. If you see something in the log you can use the button and just need to use keymapping to get the right function. If you do not see an entry in the log the button is not transmitted (not use able)

ok, thank you. i tried the debug logging and it didnt show up so I guess its not transmitted…