22   Exercise of functions by court officers

(1)  The senior judicial officer of a court may, by instrument in writing:

(a)  direct that any function of the court under this Act may be exercised by such registrars or other officers of the court, and in such circumstances and subject to such conditions, as are specified in the instrument, and

(b)  vary or revoke any such instrument.

(2)  Without limiting any other functions he or she may exercise, a registrar or other officer of a court may exercise any function conferred on such an officer by the rules.

(3)  This section does not limit any provision of the Act by which a court is constituted with respect to the exercise of the court’s functions.