Subject to the restrictions in Alaska Stat. § 13.26.435(4), the court may confer on a conservator at the time of appointment or later, in addition to the powers conferred by Alaska Stat. § 13.26.540 and 13.26.545, any power which the court itself could exercise under Alaska Stat. § 13.26.435(2) and (3). The court may, at the time of appointment or later, limit the powers of a conservator otherwise conferred by Alaska Stat. § 13.26.540 and 13.26.545 or previously conferred by the court, and may at any time relieve the conservator of any limitation. If the court limits any power conferred on the conservator by Alaska Stat. § 13.26.540 and 13.26.545, the limitation shall be endorsed upon the letters of appointment.