Using @ mentions in Buddypress Q&A

Hi

I have Q&A running on my buddypress site, http://www.extrafriends.co.uk

It would be great if you could @mention a BP user in the question itself so they automatically get involved.

An example of how this would benefit the sites usage in my case is where you have an expert in a field, you could use this tactic to draw their attention to the question.

Thanks

James.