you mean the Eits section in the aircraft.cfg?
that is already done :
[exits]
number_of_exits = 4
exit.0 = 0.2, 40.32, -5.38, 3.97, 0 // Front left door
exit.1 = 0.2, -54.10, -4.76, 4.16, 0 // Rear left door
exit.2 = 0.2, -41.14, 4.00, -1.31, 1 // Rear cargo
exit.3 = 0.2, 26.21, 4.46, -1.94, 1 // Front cargo
but i think the door animation is maybe configured in the mld file?