Possible to link two 16rig together / Controlling mulitple Speaker outputs with volume knob

Hi Community. I have two questions.

  1. The Audiofuse 16 rig looks like a great piece. I’m wondering if it’s possible to link two 16 rig together with one unit as a master and the other as an expander: 32 in/20 out sounds perfect to me.

  2. If I was to use the outputs for a 5.1 set up, can I assign the specific outputs to be controlled by the volume knob…leaving the other outputs (like to a compressor) unaffected.

Thanks for your input.