group permissions

Self explanatory. I am looking for the ability to promote the first 100 (or 1000 :) members to a specific group. The only organic setting I could find was "Has been member for X number of days." But I don't think that would quite work. Thank you!

Hi, We have several custom secondary groups created, and in the past it was admin's job to assign the correct user group to each user in due time. We'd like to allow moderator staff members to be able to do this as well. They can choose EDIT on the user profile, but the information in that...