I am exporting a small promo video for broadcast tv. They are asking for 4 tracks 2 mono and 2 stereo. When I go to output my default settings in audio channel configuration has 1 stream, stereo, source channels 1-2. Id like to add 4 streams but the + button is greyed out. I have tried different sequence settings aswell but cannot figure out how to add more channels.
thank you
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