S.C. Code Ann. § 63-17-320: Enforcement and modification of orders.

Any family court has jurisdiction and authority to enforce or modify an order or decree of any other court respecting support of wife or children subject to the limitations contained in Section 63-17-310, custody of children and visitation upon an order from the court of original jurisdiction, transferring jurisdiction to the family court. Petition may be made by either party to the original action to transfer the cause to the family court of the county where the other party resides, or petition may be made by the family court of the county to which transfer is sought, if it appears that the transfer will serve the ends of justice. The court of original jurisdiction may transfer the cause in its discretion.