Sharing Rise Question Banks With EXTERNAL Teams

Hi group

If I created a Rise course as part of a team subscription (let's call it Team A's subscription), I think I'm right in saying that I could share the course with another external team (let's call them Team B) either by inviting a Team B member to be a collaborator or by Sending a copy to a Team B member. Please correct me if I'm wrong on that point.

My main question, however, is about sharing any Question Banks that the Rise course might rely on. I can't see any way of getting the Question Banks from my Team A subscription into Team B's.

So, if I were to create a Rise course that contained Question Bank questions as a Team A member, but I did it as a favour to Team B, I could give them ownership of the course but not the course's Question Banks. Is that correct?

Thanks for any insight you can provide. 

PeteB