Benefits Set Up

  We are on E1 9.0.  I am working on benefits self-service so we can hopefully roll it out later this year.  I am setting up brand new benefits groups, some new plans, and trying to clean things up first.  Can anyone suggest the best way to unenroll employees from current plans and enroll them in the new ones?  Some DBA's were just set up on the DBA instructions screen, not through Enrollment with Eligibility, so all that is going to have to be dealt with as well.  Right now I just have nightmares of dealing with each employee manually so I'm open to any and