Be able to set default group when new users sign in to request something

Would be nice to have a setting to simply set the default group for users that access the WF environment the first time (not for those that get manually entered). That way it would be one less thing to deal with when you can't control who logs in as a requester to ask for something done. Currently the work around is to name the "default group" something that starts with "A" so that it would be the first group that an user would automatically be put into once logging in the first time.