There may be an easier way.
According to the docs

https://manualzz.com/doc/o/noxfl/roland-xv-5080.-musical-instrument-user-manual-using-the-xv-5080-as-a-general-midi-sound-module#:~:text=The%20XV-5080%20features%20a%20GM%20mode%20%28GM2%29%20%E2%80%94a,modify%20various%20parameter%20settings%20for%20enhanced%20musical%20expression.

Your XV has a GM mode so make sure yours is in GM mode then click on options/preferences/MIDI driver then select your XV as main synth.

I said there maybe and easier way as I do not use VSTs in BiaB so I have no experience in this area and I don't own that VSTi so I can't experiment with it. But based on my DAW work with other GMs it should work.

Good luck and I hope this helped.

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Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware