Using MiMix 2.1 as a dual 4 channel personal monitor mixer for live use.
Again, I have devs permission to share this.
I use the Aux Audiobus foldbacks to send Auxes 1 - 4 back to inputs 5 - 8. The first four would be out to the Main stereo house feed (outputs 1&2) while the right four ports would go to interface channels 3&4. The Focusrite 2i4 is particularly well suited to this task, as the headphone jack has a switch to listen to 1&2 or 3&4.