Comment 13 for bug 1762294

I think the M-Bus is generally a good option for anybody with a spare channel they can use, even if not obvious and may confuse some people at first (better documentation may help but definitely not for everybody.) But still this is not going to fix it for anybody using a two channel mixer, like the VMS2 owners who opened the threads/Bugs linked above.

By default, if configured for a two channel external mixer, VDJ mixes the Samplers in with all Deck outputs. I think a checkbox in Preferences somewhere to optionally mix the M bus into both L/R bus outputs would help users of these devices. Definitely not perfect but may be an improvement for two channel MIDILog style mixer/controllers....

So although I don't think it's really needed I can see how a specific Sampler output could simplify things and help prevent necessary headaches and questions from users and I don't think it would be that much extra clutter to the Audio Preferences page.