In actions sent to a master or referee, the hearing shall proceed according to the rules of law or equity, as the case may be, and the practice in Court. The master or referee may allow amendments in the same manner and to the same extent as if the action were tried in Court; and, when amendments are so allowed, the master or referee shall report such facts to the Court. The master or referee shall certify the costs of each Party in the hearing.
N.H. R. Cir. Ct. Prob. Div. 83