Multiple quizzes within presentation, but only one results page

Hello,

I would like to intersperse 7 quiz questions (with points) through my powerpoint presentation but have the results page display only when the user has completed all the quiz questions. So, as an example, I want to have a quiz question on slides 7, 13, 21, 29, 32, 43 and 50 -  but the user would only see their quiz result display on Slide 51 - once they have submitted all their answers. They must get 80% in order to pass.

How can I do this with QuizMaker?

Thanks.