My rendition of the Northrop B-2 Spirit with a complete custom Fly-By-Wire.

AG1: Activate Fly-By-Wire (without it, AG2 to AG6 does not work, and you'll be in full manual control)
AG2: Activate AutoThrottle (enter a value in m/s)
AG3: Activate Roll Level Off (it will force the roll input to go to 0° when under 5°)
AG4: Swap pitch control mode (deactivated is craft pitch control, activated is flight path angle control)
AG5: Activate Altitude Level Off (it will force the pitch input to go to 0° under 0.5°)
AG6: Activate AutoAltitude (enter a value in m)
AG7: Toggle Navigation lights
AG8: Toggle Landing gears
AG9: Toggle Landing lights
AG10: Toggle Bomb bays (empty)

Tips to fly this craft:
-HAVE THE FLIGHT LOG OPEN
-you can take off easily by having AG1,2,3 and 4 activated, and AG4 TARGETING around 5°
-Use the Brake input to open the drag rudder and control your energy (when descending for exemple)
-Give the craft time to stabilise itself
-You can change the fuel level by targeting one of the two tanks by hovering your mouse around 2/3 of the leading edge and clicking on the rectangular tank
-The craft is more floaty the slower you are, best performance are above 200m/s