Elevator: Mission Impossible.

—While moving upwards, disregard all Down Summons Buttons.

—While moving downwards, disregard all Up Summons Buttons.

 —Close the door after 15 seconds of inactivity on any floor.

—When reaching a floor where you’ve been summoned, stop and open the door.

—Respond to all Summons Buttons by heading to the designated floor

—Reverse direction when reaching the top or bottom of the range

—Do not reverse direction unless it is directed to do so or the limit is reached.