Hi Rally,

If you right-click on a track and select "Specific VSTi/DXi Synth for MIDI Track", RealBand will put that track on its own MIDI port, with the synth you selected assigned to it.

If you select a synth that's already being used on another track, then they'll both be assigned to the same instance of that synth on the same port, unless you manually assign the tracks to different ports.

Thanks
Kent
PG Music