"Anchor" track for Variaudio

I’m mixing a track right now, which was recorded on cell phones separately during quarantine, and tuning the tracks to each other (classical instruments) is a pain.

It would be great if, when working with Variaudio, you could set up one track to be the “anchor” track, to which you could easily tune others by selecting them and, say, click “tune to anchor track”. If it works with Hermode tuning, all the better (since it’d be very useful for winds, strings etc in a non-pop setting).