Who's on 'PAGE X'

[BUZZKILLER]

ok, i've searched for this without result..

Lets say have several external pages..

I have all these pages integrated into the Location colum of the Who's online list..
for example, if 'MEMBER A' is on 'asteroids.php', it says on the Who's online page that MEMBER A is Playing Asteroids.

Also have all these pages with the vb security in place so people have to be logged in to access them..

What i'd like is to be able to have a list on another (any) page of the people that are currently on one of these external pages.

sort of a stricter 'who's online'
like USERS PLAYING ASTEROIDS: MEMBER A, MEMBER B, and so on..

any thoughts? has this been discussed before? any results?

Thanks a ton.