If in BiaB this may be complicated.
In RB you can easily assign a given track to a new 'Port'. This Port can hold a new synth or a new instance of the same synth used elsewhere.

For what it's worth, sForzando is not just for the included "special midi sounds". You can add additional sounds to it.

To explain:
Tracks get routed to ports.
These Ports contain an output device (either a softsynth as you mention or a physical MIDI output that could connect to any hardware device/synth). BiaB (I think) has very limited MIDI ports. RB has 32.

In turn, the MIDI channel for the given port can further filter on down to other selections.
MIDI is pretty flexible once you get how the signal flow works.

To post a screen shot:
Save it on your computer, make sure to click the Reply button in the forum (and not use the Quick Reply below)
.. then there is a File Manager option to upload your screen shot.

Attached Files (Click to download or enlarge) (Only available when you are logged in)
FileMngr.jpg (90.9 KB, 81 downloads)
Last edited by rharv; 01/01/17 08:23 AM.
I do not work here, but the benefits are still awesome
Make your sound your own!