Maybe it could have an option for MMR (MidiMultiRiffs).
As mentioned before maybe right click the track to re-channel it.
It would still work with the Standalone as you could set the default Midi Output Device to what you like, as well as the Audio Device.
Here's a couple of layouts:

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BBvst-Midi-Tracks.gif (96.06 KB, 53 downloads)
BBvst-Midi-Tracks2.gif (107.37 KB, 53 downloads)