Strange I couldn't find this simple feature which seems so obvious to me!
I have one external keyboard controller (Arturia Keylab mkII) and have created a 10-track song. During live play of the song, I would like to play Spire vst on track 1 for measures 1 to 5, and Nexus 3 vst on track 2 for measures 6 to end. Tracks 3 to 10 are just backing tracks (drums, bass, etc.). Is it possible to automate that the active track (controlled by the Keylab to be played "live") automatically switches on measure 6 from track 1 to track 2 in the same song? (full keyboard range needed, so split is no option)