I have multiple audio outputs, all correctly recognised and shown by Pulseaudio.
pavucontrol GUI I can individually change the volumes of all the outputs.
The volume shortcuts only change the volume of the primary (internal) output.
I usually redirect Music on Bluetooth and I would like to have different schortcuts to change its volume.
Does anyone know which (terminal?) command should I use to do it?
Thanks in advance, Davide
PS: This question addresses many questions, and one of them is similar. Though it is not exactly the same (I would like to not have to raise Rhythmbox every time that I want to change the volume), it was for a very old version of Ubuntu/Pulseaudio and it was not answered, so I believe that this is not a duplicate of that.