(1) This rule applies to party and party costs for fees paid or to be paid to a lawyer engaged as counsel.
(2) The fees are a necessary expense for a proceeding if:
(a) either:
(i) the proceeding was heard by a Full Court; or
(ii) in any other proceeding--it was reasonable to engage counsel to attend at the proceeding; and
(b) for a hearing or trial, counsel:
(i) was present for a considerable part of the hearing or trial; and
(ii) gave substantial assistance during the period to which the fees relate in the conduct of the proceeding; and
(c) the fees are not more than the amount otherwise payable under these Rules for counsel engaged to attend at a proceeding.