Automation From Mixer

just starting out with FL, decided to climb a steep learning cliff and try and mix and produce a song recorded in a studio

there's an organ that has 3 tracks so after creating a separate mixer slot for each i created an Organ Bus on the mixer which all 3 organ slots are routed to for ease of mixing control

however there are some organ parts i want muted since i think they clash with the song, wondering can i create a volume automation track on the playlist that is linked to the Organ Bus so i can change the volume of all 3 organ tracks with 1 automation clip, or do i have to make an automation clip for each of the 3 organ tracks separately?