I chose to setup the synth each time since if you chose re-route To DXi/VSTi synth option it will not send the data track to my TC Helicon harmonizer. I just setup the synth for the needed tracks, and add RTs as needed and hit save.

Couple extra sets but the TC unit kicks in and adds vocal enhancements to taste.

I know this is not your question but illustrates that there is a reason for these options, and gives ideas.

HP Win 11 12 gig ram, Mac mini Sonoma with 16 gig of ram, BiaB 2025, Realband, Reaper 7, Harrison Mixbus 9 32c , Melodyne 5 editor, Presonus Audiobox 1818VSL, Presonus control app.