It overrides the flickr "Send to Group" button above your photo/video and lets you send your Flickr image or video to multiple groups simultaneously

Lets admins delete images from a group pool with 1 click, also lets you delete all a users images from the pool at once + also allows you to email + optionally ban or kick a user at the same time.

Lets you tag/categorise/sort your groups to help you find them again more easily and also lets you quit groups more easily

Show all images by this user in this group's pool

Adds customisable links to the top of every page on flickr next to the flickr logo