A court having before it any guardianship matter for a minor whose home state is this State may transfer the matter to another county in the interest of the minor or, if not contrary to the interest of the minor, for the convenience of the guardian. A petition for the transfer, setting forth the reasons therefor, may be filed in the guardianship proceeding. If the court is satisfied that the transfer is in the interest of the minor or, if not contrary to the interest of the minor, for the convenience of the guardian, the court shall make an order of transfer and cause a transcript of the proceedings in the matter, all original papers filed in such proceedings and the original bond filed by the guardian, to be certified by the clerk of the court originally hearing the matter and sent to the clerk of the court of the other county. Upon receipt of the transcript, papers and bond, and the filing of them for record, the court of the other county has complete jurisdiction of the matter, and thereafter all proceedings must be as though they were commenced in that court.