Overbridge changing track

Hey Elektronauts

I have what I think is a simple question…

I’m using my Analog 4 mkii with Overbridge and it works great! I just cant figure out how to change the track the MIDI controller is playing. So I’m always hearing whatever sound is on track 1. I’d like to be able to change between the tracks 1, 2, 3 and 4???

Cheers!