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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Why is it that doctors call what they do 'practice'?
If flying is so safe, why do they call the airport, the terminal?

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