(1) An admiralty proceeding which is a Commonwealth proceeding shall be entered in the List—
(a) upon the issue of the initiating process; or
(b) where it is transferred to the Court, upon transfer.
(2) The originating process in an admiralty proceeding which is not a Commonwealth proceeding may, at the option of the plaintiff, be marked in the top left-hand corner with the words "In the Admiralty List" and, upon the filing of the originating process so marked, the proceeding shall be entered in the List.
(3) A party to an admiralty proceeding which is not a Commonwealth proceeding and in which the originating process has not been so marked may within 14 days after appearance or, where it is transferred to the Court, within 14 days after transfer, apply to the Judge in Admiralty for an order entering the proceeding in the List.