Plugin that adds a blank tab to BP Groups which can be a customised page/ html code

What would be great would be if there was a plugin that could add extra tabs to the BP Groups pages.

It adds a tab in a similar way that ‘Group Documents’ etc does, however it would be great if we could edit that page with either text or an html insert per group.

Hopefully you understand what I mean but it would give us a way of adding a unique page to a group that was fully and independently editable.

Would be great for example if you wanted to add a html widget that was suitable to a particular group.

Opinions?