creating a group calendar - what am I missing?

creating a group calendar - what am I missing?

 Hey all, I'm quite loosing it I think...

I've looked everywhere on forums and help and in Mail and Control Panel and Users and Groups and Calendars - HOW do I create a group calendar?

When inside a group (as an owner) I see tabs for Doc, Links, Tasks, Notes, and Contacts - but NO tab for calendar.

I can't seem to find any other way to add them, please help :)

Thanks,
~ Svetlana