I'd love to have the option to change the stereo output channels without using Audiobus. I use a Soundcraft Signature 12MTK and it uses channels 11-12 as the output channels. If there was a way to simply choose outputs for the stereo the way I can choose inputs for each channel, I wouldn't need any other apps besides Multitrack DAW.

It's a good suggestion. I've not done this so far because it required multiroute, which disables airplay and mixWithOthers (mixing output with other apps)