TC Helicon Perform VK - Dry Signal Level

New

Hello. 


Just recently acquired the Perform VK to create harmonies live from a vocal. 


However, ideally I'd like to use this as a send from our mixer so that it can be fed with different singer's vocals depending on the song. I want to keep the dry signal separate and only have the Perform VK output the harmonised result. 


Is there a Harmony mix level setting? Can this be controlled via a Midi CC? Is there a dry signal level that I can mute or set at zero? Also can this be controlled by midi CC?


Cheers