Just add the Dominican Airways A320 folder to Program files/Microsfot Games/Microsoft Flight Simulator X/Sim Objects/Airplanes



Doors Operation
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L1 – Select exit (Shift + E)
L2 + cargo doors – Tail hook up/down (not assigned to a key binding by default)
R1 + R2 – Wing fold/unfold (not assigned to a key binding by default)