(a) Except as agreed by the parties, the arbitration tribunal may:
(1) appoint an expert to report to it on a specific issue to be determined by the tribunal; and
(2) require a party to:
(A) give the expert relevant information; or
(B) produce or provide access to relevant documents, goods, or other property.
(b) Except as agreed by the parties, if a party requests or if the arbitration tribunal considers it necessary, the expert shall, after delivery of a written or oral report, participate in an oral hearing at which each party may:
(1) question the expert; and
(2) present an expert witness on the issue.