Hi,

To define what is sent through the 3rd output (to the Aximmetry Eye, as shown in your screenshot), you need to expose a video connection as the third exposed video connection in Aximmetry's Flow Editor. You can find more information about this in the section titled "Exposed Video Output Index" in the documentation: https://aximmetry.com/learn/virtual-production-workflow/starting-with-aximmetry/aximmetry-composer/basics-of-the-flow-editor/#exposed-video-output-index 

Warmest regards,