(1)   A tribunal of this state shall apply subchs. I to VI and, as applicable, subch. VII, to a support proceeding that involves any of the following:

     (a)    A foreign support order.

     (b)    A foreign tribunal.

     (c)    An obligee, obligor, or child residing in a foreign country.

   (2)   A tribunal of this state that is requested to recognize and enforce a support order on the basis of comity may apply the procedural and substantive provisions of subchs. I to VI.

   (3)   Subchapter VII applies only to a support proceeding under the convention. In such a proceeding, if a provision of subch. VII is inconsistent with subchs. I to VI, subch. VII controls.