Changing states in a quiz

I don't get your last sentence.

I was referring to the review layer in the screen shot.

Can I direct my user to review the exam before submitting it (all the exam)?

Yes, it can be done. The consideration is whether you want them to review, then be able to change the answer before submitting, and submitting all the questions at the end. If they can't come back and change an answer before submitting, then it seems to me that the review serves no purpose.

If what you really want is for the Submit button to be disabled after the first submission, that's easy enough. See the attached sample. Quiz 1 shows a custom method, which you can invoke by clicking Review all questions on either of the feedback layers  after Quiz 2.

Clicking Continue on those layers will show how the built-in Review works.

At any rate, the system does not allow inadvertent clicking of Submit - you must answer the question before you can submit.  You cannot submit the entire quiz at once, each quiz slide must be submitted individually.

If none of this answers your question, just ask.