After entering an order allocating custodial responsibility and decision-making responsibility in accordance with the provisions of sections 9-206 and 9-207, the court may also from time to time afterward, upon the motion of either of the parties or other proper person having actual or legal custody of the minor child or children of the parties, revise or alter the order concerning the allocation of custodial responsibility or allocation of decision-making responsibility in accordance with the provisions of article 9 of this chapter, and make a new order concerning the same, issuing it forthwith, as the circumstances of the parents or other proper person or persons and the benefit of the children may require.
West Virginia Legal Code