sure! just make a script that is activated via action menu. in the script make it sot eh person jumps out of the plane(action ["eject", plane1])
than camcreate a parachute at the players position, than make the player get in teh parachutie (moveindriver parachute)
than addaction ["leave parachute", "leaveparachute.sqs"]
and in that script, deletevehicle the parachute.