(4) If termination of parental rights and appointment of a guardian of the person with power to consent to adoption of the minor under Section 2-29 is sought, the petition shall so state. If the petition includes this request, the prayer for relief shall clearly and obviously state that the parents could permanently lose their rights as a parent at this hearing. In addition to the foregoing, the petitioner, by motion, may request the termination of parental rights and appointment of a guardian of the person with power to consent to adoption of the minor under Section 2-29 at any time after the entry of a dispositional order under Section 2-22.