Neb. Rev. Stat. § 49-807: Neb. Rev. Stat. § 49-807

An agent or attorney in fact under a power of attorney, whether the power of attorney is durable or nondurable, may do the following on behalf of the principal or with the principal's property only if the power of attorney expressly grants the agent or attorney in fact the authority and exercise of the authority is not otherwise prohibited by another agreement or instrument to which the authority or property is subject:

(1) Create or change rights of survivorship; or

(2) Create or change a beneficiary designation.