(1) This rule applies if:
(a) a lawyer starts a proceeding for a client that could reasonably have been started at the same time, and in the same court, as another proceeding between the same parties; and
(b) the proceeding was not started at that time in that court.
(2) The lawyer may charge for work done for all the proceedings only the amount the lawyer could have charged if the lawyer had started all the proceedings at the same time in the same court.