Storyline quiz - How to add review question when user click "back"

Hello SGC CBT, 

Thanks for reaching out!

If you would like your question slides to retain the responses of your learners, you'll want to set the revisit behavior of the slide to Resume saved state. This article explains how. 

Each question slide is submitted individually. To enable the retry option for your quizzes, you can do so by adding a retry button to the Results Slide. And if you're interested in submitting all the answers of your learners at once, you can check out the solution outlined in this article: 

• Storyline 360: Submitting Answers All at Once

Let me know if you have any questions!