Indiana Code Title 33. Courts and Court Officers § 33-38-14-22

Sec. 22. The masters, before the conclusion of the hearing, or the commission, before its determination, may allow or require amendments to the notice of formal proceedings and may allow amendments to the answer.  The notice may be amended to conform to proof or to set forth additional facts.  If an amendment is made, the judge shall be given reasonable time to answer the amendment and to prepare and present a defense.