Totally understandable confusion. Great idea though, thanks!
I would like the stereo out bus, named “Stereo Out,” (seen at the bottom right of this image), as a track in the “Input/Output Channel” folder, (seen at the top left of this image), alongside the “Main out” stereo out bus, as what I would call an active track. (Look for the red arrows.)
As of now all tracks going to this inactive stereo out bus get left behind during mix down.
You can see how on the Mix Console, where all the faders are, the name tag for “Stereo Out” is dark.