? about how to key switch between performances on a chord-to-chord basis

Heya… I’ve been wanting to build chord sequences in which I’m switching between performances and phrases and melodies on a fairly fluid basis within on grid tab, on a chord-to-chord basis.

Is there a straightforward way to do this? What I’ve been doing so far is making separate tracks with different attributes and switching between them in Logic, but that can get pretty unwieldy when things get complicated.

Thanks!

Anyone have an idea how to do this? Or is it a stupid question and I’m missing something basic? @davide