FED - night deck circuits to HM's Grey Funnel liners - 200' asl with a height hold selected in - release the height hold in turn on to finals and fly the aircraft manually from there in. Transition away from the deck, get to height, engage height hold.
If you have the capability, why wouldn't you use it over the water at night?
Or is it more hairy-chested to ignore the aircraft's capability and scare yourself?