If your mixer has A1 - A8 as the outputs, you may want to change the setting for 'Unassigned Output Ports work as Subgroups' .. under Prefs Audio tab. You'll notice in the mixer that A2-A8 now show G2-G8 after changing (G for Group).

Then those extra slots are actual subgroups that eventually get sent to the Main Output.

Then a track with A1 as the Output Port you can change it to S2 etc in either the mixer or Tracks view via the Port assignment per track.

Use
Horn section using 4 tracks get mixed and sent to Subgroup, then you can control the volume of the 4 track horn section with a single Subgroup slider.

If you only have A1 available as a physical output, that would be the preferred setup for most.


But if that's too confusing, get used to how it works now before tinkering with things.
Just thought I'd point that out; at least something accidentally sent to a Subgroup gets sent to the Main Out eventually (unless the Subgroup volume is at zero of course).


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