Is there a way to have one thread on two boards and still be connected?

[Hicksatpd]

Hi guys,

Here's what I mean:

I want new threads posted on board B to simultaneously get posted both on board B and on board A (but not the other way around! If a thread is posted on Board A, it just stays on board A).

I realize threads can be copied, but what I'm looking for is a little different.

I want threads made on board B to not only exist on both boards, but I want it setup to where, if someone replies to the thread, on EITHER board, that the reply will display in both places.

Do you see what I mean? The thread exists in two places at once, and regardless of which place you're looking at it, if you make a reply, the reply will then be in both places so that you can access it either way you choose.

Is this possible?

Thanks