C-130J crew model has an ALM in the middle seat for LL lookout, especially at night on gogs, and for lending some SA to the drivers when doing some of the more high-end stuff. Another ALM is down the back for air-despatch and can be joined by the one up on the flight-deck for loads which require two crewmen to drop. Their role is mission-based and not to do with the basic operation of the aircraft which is still a 2-man job. The galley is still within arm's reach to the left so they can still do their primary role!
A QMETI is the AWC's attempt to develop a QWI-esque post-grad course for ME aircrew, but since there are no Ws you can't be a QWI.