Disabling the assessment function in quizzes

It might sound strange but I want to use the quiz format to reinforce learning rather than assess user's performance. As a result I have built a course using many quiz interactions but have no intention of capturing the results. I want learnere to explore and return to sections as often as they want, trying out questions at will.  It seems that Storyline locks a question and all associated fuctionality once you have answered it thereby preventing a learner from returning to a quastion already answered and trying again.

Is there any way I can disable the assessment logic associated with quiz questions to allow a learner to return to the same question and try it again without having to restart the whole course?

Thanks