You should save the edited VH setting with a new name. I save that setup to my USB stick. Then create a registration with these four separate settings:
slot 1 is for Mic OFF
slot 2 is for Mic with NO reverb on it, used to speak clearly to the audience
slot 3 is for Mic with the reverb on it but without the backup singer(s)
slot 4 is for Mic with the reverb on it and the backup singer(s)
I have several different backup singers settings each is its own registration.
Backup singer ONE male
Backup singer ONE female
Backup singer TWO males
Backup singer TWO females
my vocal with 25% reverb and two male backup singers.
my vocal with 40% reverb and two male backup singers.
Backup setup for Alabama songs
Backup setup for Beatle songs
Backup setup to do Jackson by June and Johnny Cash.
That is just some of the ones I have set up and backed up.
Regards
Drake