I'm not sure where those channels are defined, but I'd never seen a lot of options for the "patches" that harmonies use. My best results have been to use libraries like Session Horns, MOJO, or Straight Ahead Jazz Horns and set them to arrange the voices. This is the only solution I've found for "Live" plating. Real Band could probably do anything once a tune is saved with harmonies.

https://www.youtube.com/watch?v=CGqAVtZgStg


Jan - 12 Core AMD Ryzen 9 3900X
32GB DDR4
Win 10 64-bit
Samsung m.2 SSD Boot drive,other SSD internal and USB drives.
MOTO 2
Ketron SD4,SD1000
Yamaha RX-v381amp
VB-Audio virtual cables