Section 560:1-306 - Jury trial(a) If duly demanded, a party is entitled to trial by jury in a formal testacy proceeding and any proceeding in which any controverted question of fact arises as to which any party has a constitutional right to trial by jury.(b) If there is no right to trial by jury under subsection (a) or the right is waived, the court in its discretion may call a jury to decide any issue of fact, in which case the verdict is advisory only.