The Village President shall appoint the members of the Plan Commission and designate a Plan Commission Chairperson during the month of April to fill any expiring term. The Village President may appoint himself or herself or another Village Board member to the Plan Commission and may designate himself or herself, the other Village Board member, or a citizen member as Chairperson of the Plan Commission. All appointments are subject to the advisory approval of the Village Board. In a year in which any Village Board member is elected at the spring election, any appointment or designation by the Village President shall be made after the election and qualification of the Village Board members elected. Any citizen appointed to the Plan Commission shall take and file the oath of office within five days of notice of appointment, as provided under Wis. Stats. § 19.01.