The enactment of §§ 25-4A-21 to 25-4A-27 , inclusive, does not constitute a substantial change in circumstances justifying the modification of existing custody orders, but the provisions of §§ 25-4A-21 to 25-4A-27 , inclusive, shall apply to modification proceedings which are otherwise properly before the court. Source: SL 2014, ch 122 , § 7.