(a) Generally.

No agreement or consent between parties or lawyers relating to the conduct of the arbitration proceedings, the purport of which is disputed, will be regarded by the arbitrator unless the agreement or consent is made at the arbitration hearing, or unless the agreement or consent is in writing and signed by the lawyers or parties denying the same.

(b) To Arbitrate Other Cases.

The parties may stipulate to enter into arbitration under these rules in a civil matter that would not otherwise be subject to arbitration under rule 1.2. A case transferred to arbitration by stipulation is subject to the arbitration rules in their entirety, except as otherwise agreed under section (a).