[Zope] session_data Users Online?

[centershock@t-online.de]

Ahoi... Remark ahead, I know that "http" is a connectionless protocol,
but does somebody know a hack to find out how many users are online in
Zope!?! I cheked out the Session Modules in Products but can't find a
Methode that works. For hints or a tutorial_link I'm very gratefully to
you all. Oki, have a nice day and remember... Support the newbies, they
are resources for the future.

cYa