wml generation to only include whats on bb2?

Hi guys - I'm currently generating wml pages using the --wml tag, but it seems to show up every single non green alert. I would like it to show just the alerts on the bb2.html page. Is this possible?

I use the "nobbb2" tag on certain hosts to stop them showing on bb2.html, and I'd like the wml pages to do the same.

Many thanks James