Global parent account dashlet

Hi,

Has anyone extended the listview dashlet (for Accounts) to show not only related records, but also related records to member Accounts?

I would like to see alla contacts on a parent account, but also all contacts on all member accounts. For a large consortium with multiple member organizations that would be a big help to get an overview from the parent account and not having to click on every single member organization to see the contacts.

I'm aware I could do a report for it, but I want to display it on the intelligence pane.

Thanks