Panning to Mixbus

When using the Mix-32 app to mix a stereo mixbus (fantastic UI to do this, much better than the old x32 edit ‘sends on fader’ way. Especially since when you leave the page and go back it remains controlling that bus!!) I had noticed that when you adjust the pan above any channel while in a mixbus page, it pans the mains as well. It would be great if panning while on a mixbus page would only pan that mixbus. I remember the x32 edit app had no way on the home page to adjust panning, but I thought at one point I had figured out on the console how to pan a channel in a mixbus without changing anything for the mains - if the app could do this easily, it would be amazing for mixing a stereo record/stream feed while the Main’s feed a mono PA.