(1) By written stipulation of the parties, an undertaking on appeal may be waived, reduced or limited. The stipulation must be filed with the trial court administrator within 14 days after the filing of the notice of appeal. Unless disapproved or modified by the trial court, the stipulation has the effect specified by the terms of the stipulation.
(2) The trial court may waive, reduce or limit an undertaking on appeal upon a showing of good cause, including indigence, and on such terms as are just and equitable.