[feature] Assign programs to groups

[MaDaWa404]

Some programs use multiple instances, which need to be controlled seperatly.
For discord, there is already a workaround, but it would be nice to include that to others, for example users could create one group called games and control the volume of all games with the same fader, similar to the GoXLR (which is an expensive hardware solution)

[totoberg123]

This idea sounds perfect! Would love to see this feature asap

[CpazR]

Literally just started using this and it's my only real complaint so far.
For reference, I can have winamp, dopamine, Napster, or Spotify open all at once, but they all require their own binding. Just dedicating a single slider to "music apps" would clean things up so much.