I normally use Sonar for my live recording so to address your question, In BB, I don't do that.

In your first post you didn't really specify that you were trying this in BB. I know it is totally possible in Sonar because I have done it there.

Just for grins I turned on the studio and loaded a sim and tried to get live VST in BB.... I couldn't figure out how to get it to play through the system. It worked fine on playback.

That's the reason I use a DAW like Sonar.

I'm not 100% up to speed on all the things BB can and can not do, but this might be one of the things beyond it's capabilities.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.