2.1  A judicatory above the session may have a vice-moderator when such an office is incorporated within its standing rules which prescribe the manner of election.
     2.2  The vice-moderator shall perform the duties of the moderator during the absence or disability of the moderator or in the case of a vacancy in the office of moderator, and shall perform such other duties as from time to time may be assigned to the office of vice-moderator by the judicatory.