Yes, in theory, but you have to have the voice knob set on 3 to engage a different voice mode as I understand it. So if I was on setting 4 and had the single lead in 2 if I engaged the switch I would get both 4 & 2 unless I was on setting 3 on the amp. Which is why it would be preferable to have a switch with the 5 jacks plugged in and some kind of display or 5 buttons (with LEDs to show which is engaged)
I would also like the mute on the same switch if possible. I’m not a fan of the push/pull mute on the master volume.