What can I do with Output 3 and 4 - why can the Device not be set for these? Lets say I have the Quad 2 in there, the Monitor and the Duo2 I took out, each of these cards is capable of output and input, so theoretically I should be able to have I think 6 input and 6 outputs - but as much as I see titles saying Vmix has Hundreds of outputs - how does one configure these outputs to output to specific Duo/quad renderers? Moreover on the External Outputs page for 'External' I have the MiniMonitor set as the Output device, and in 'External 2' I have the Duo (1) set as the output in order to send the Key & Fill. Output 2 is set to say input 25 - which is a virtual set and has several Camera inputs configured on it with some multiview overlays, etc. However since configuring Key & Fill it is a little confusing - I have set Output 1 as Output as this goes to a Stream, and Recording. Prior to configuring the Key & Fill the Mini Monitor was used as an Output channel and changing the 'Output 2' section in the 'External' section from the main screen allowed us to deliver whatever input/preview/output we wanted to the monitor on the end of it. We have SDI 1 & 2 linked and configured in Vmix to have Straight Alpha mixing, in order to give Key & Fill This works great, but there are draw-backs and I need to figure out why. I am testing a system with a Decklink Quad 2, as well as a Decklink Mini Monitor. I saw somewhere a mention that Output 3 & 4 are only available for Video Call and Instant Replay.but where is the documentation for this?

Vmix outputs