Figured out a perfect solution. In an unused input (I'm using 21-24), you can assign a TC2 source, in this case multi viewers 1-4. Then just assign that input to one of the mix outputs. I typically only use 3 mix outputs so assigning a couple of them as external multi views doesn't impact my workflow and eliminates the need for external converters. I should note that this is not the NDI solution I originally posted about but since my director is only 100' away or remote via Discord, having all multi views available on the SDI router is very handy. And I can have audio associated with the signal as well.