You have to do it analog with two passes.
Mute 3&4 for the first pass.
Repatch the cables and mute 1&2 for the second pass.
If you have SDI out:
Go to sequence settings AUDIO
create another group and make the all of them MONO pairs.
Now you have four MONO track representing 1 2 3 4
output via SDI embedded and the tracks will go down to the four tracks in one pass.
Now that’s some useful information.
David
Peace and Love 🙂