Neb. Rev. Stat. § 25-1112: Neb. Rev. Stat. § 25-1112

If the court refuses a written instruction, as demanded, but gives the same with a modification, which the court may do, such modification shall not be by interlineation or erasure, but shall be well defined and shall follow some such characterizing words as "changed thus," which words shall themselves indicate that the same was refused as demanded.