(1) If, under these rules or an order of the court, a party is entitled to costs, the costs are to be assessed costs.
(2) However, instead of assessed costs, the court may order a party to pay to another party—(a) a specified part or percentage of assessed costs; or(b) assessed costs to or from a specified stage of the proceeding; or(c) an amount for costs fixed by the court; or(d) an amount for costs to be decided in the way the court directs.