(2) The Court of Appeals shall have appellate jurisdiction only, except that it may be authorized by rules of the Supreme Court to review directly decisions of administrative agencies of the Commonwealth, and it may issue all writs necessary in aid of its appellate jurisdiction, or the complete determination of any cause within its appellate jurisdiction. In all other cases, it shall exercise appellate jurisdiction as provided by law.
(3) The judges of the Court of Appeals shall elect one of their number to serve as Chief Judge for a term of four years. The Chief Judge shall exercise such authority and perform such duties in the administration of the Court of Appeals as are prescribed in this section or as may be prescribed by the Supreme Court.
(4) The Court of Appeals shall divide itself into panels of not less than three judges. A panel may decide a cause by the concurring vote of a majority of its judges. The Chief Judge shall make assignments of judges to panels. The Court of Appeals shall prescribe the times and places in the Commonwealth at which each panel shall sit.
