How can I change the slide master when using quiz slides?

HI,

The project I am working on is using a basic wireframe slide master that includes navigation buttons across the top.  I use this wireframe to create my slides so they are consistent.  However, when I use a quizzing slide, I can't change the slide to use the wireframe.  I see how to change the feedback master, but can't find a similar function for the quiz slide itself.

thanks,

AB