G (Landing gear next state) will cycle through the 4 settings which is a combination of 2 other settings: Direction and lock. They can be done individually if you chose.
To raise:
1. Press G. It will say, "gear up ready". Direction = up, unlocked.
2. Hold LCtl+G (Landing gear handle, Up) until the handle stops. 42 turns so a long time.
3. Press G, It will say, "gear up fin". Direction = up, unlocked. This stage does seem to do anything since there's no up and locked.
To lower:
1. Press G, It will say, "gear down ready". Direction = down, unlocked.
2. Hold LShift+g (Landing gear handle, Down) until the handle stops.
3. Press G, It will say, "gear down fin". Direction = down, locked.
I setup some buttons on my throttle for G, Up, and Down.
Also it moves up/down the same but noticeably the more it comes up the slower it goes so the speed is not linear. Also that curved tube across the edge of the cockpit is the gear indicator.