Fade a group bus when an event is playing

Hello,

I’m using fmod studio to add audio to my game and I was wondering how I could fade a group bus when an event is playing ?

Mainly, i want to fade my music group bus when a specific event is playing

Thanks

EDIT :
I figured I needed a snapshot instrument, but I can’t figure how to tie the volume automation to the duration of the snapshot

EDIT 2 :
Made 3 snapshots, fadeoutmusic, nomusic, fadinmusic and laid them on the track

I think I got it, feel free to give me a better way !