This is a quick demo posted in vi-control.net.
I am not the author of video.
My guess as to the setup:
The chords are midi bound so a midi track is driving Scaler2 to get length of notes correct. Keystroke is triggering one of the grey notes at top which triggers a chord in Section C.
First and third chords have a performance specifically assigned to them.
Second and fourth chords are playing the global performance assigned in top window.
And fifth chord is assigned a performance that only sounds for a beat.