Shortcut on mobile app (Mute, deaf, etc..)

Hi,
It would be awesome if we could configure the headphone buttons (like "play/pause", "next track", "previous track") to, well what we want, or at least to something useful.
Like you cause press "Play/Pause" on your headphone to mute yourself in a voice chat, or press "Next Track" to deaf.

The best would be, in my opinion, a screen where we could configure those action (like in the desktop application). 

Thanks!