If a party requests under law of this state other than this chapter a modification of an award confirmed under section 32-29.4-15 or judgment on the award based on a fact occurring after confirmation:
1. The parties shall proceed under the dispute-resolution method specified in the award or judgment; or 2. If the award or judgment does not specify a dispute-resolution method, the parties may:
a. Agree to arbitrate the modification before the original arbitrator or another arbitrator; or b. Absent agreement proceed under law of this state other than this chapter governing modification of a judgment in a family law proceeding.