AS far as i understand , there is no such a thing as ETOPS for aircrafts with more than 2 engines .
ETOPS basically states the maintaianance procedures and requirments for aircrafts with '' 2 engines '' to conduct flights over the oceans at a distance of more than 60 mins away from the nearest diversion zone , and its to ensure that in case of engine failure the aircraft can still go ahead with the flight, safely with no serious by-products resulting from the engine failure or from flying the aircraft with one engine .