In cases involving (i) the custody, visitation or support of a child arising under subdivision A 3 of § 16.1-241, (ii) spousal support arising under subsection L of § 16.1-241, or (iii) support, maintenance, care, and custody of a child or support and maintenance of a spouse transferred to the juvenile and domestic relations district court pursuant to § 20-79, the court may enter support orders in pendente lite proceedings, provided such proceedings are not ex parte.