Advanced Channel mapping

Hello All!

I am trying to record 4 separate tracks from one software (ChucK - a programming language for music, think supercollider or Max or PD) to Adobe audition using BlackHole.

The problem I seem to run into is:

When My input device in Audition is set to BlackHole, the channel mapping only allows for 2 inputs (L/R) - I need 4 separate inputs. BlackHole is 16 i/o and I have 4 separate channels coming out of ChucK (with BlackHole set as the output device).

I've been searching the internet, andI can't seem to find a solution. Even when I hook my Scarlatti 18i20 up to my computer - Audition only recognizes 2 ins.

Any suggestions?