Sorry for such a basic question but I've just inherited a multi VMix operation at my Stadium and sadly nothing is documented. Gradually working through stuff and the tutorials but stuck on a basic issue.

I'm trying to work out how you can tell from the software which output port of the consoles Graphics card has been mapped to the preview cued window or the live windows? I see external outputs in the set-up but they seem to relate to transport medium like SDI but not to graphic cards.

Can anyone point me in the right direction?

Thanks Phil