I know this must be possible, but I'd like to be able to select the audio for External 2 (not the Main bus audio output).

Here's the scenario: I need to send Input 24 to External 2 (out to SDI via Decklink). Input 24 has no audio, so I'd like to marry an audio input to it (which happens to be a mix minus, and is not used anywhere in main program audio) and send it out External 2 as the embedded SDI audio.

Been playing around with this for a while now and can't figure it out...

Thanks!