Rule 3 Parties may be added

If on the hearing of any civil bill for the grant or revocation of probate or letters of administration, it appears to [^f1 the judge] that any person, not being already a plaintiff or defendant therein, ought to be made a party to the suit, he may adjourn the case and direct that such person shall be made a party thereto by amendment of the civil bill and shall be served with the civil bill.

[ The judge] may direct the mode and manner in which a civil bill is to be served under paragraph (1) and, if he directs substituted service, shall specify when and in what manner such service is to be effected.