Skip questions until the end of the test

Hi,

We have a quiz with 5 question banks that randomly generate a total of 60 questions. To pass the test, participants need to score at least 50% in each question bank and 70% overall. The test duration is 120 minutes.

I’m wondering how the participants can skip certain questions and later, at the end of the test, either receive a list of unanswered questions or something similar.

I would be absolutely thrilled if I could get help solving this, thank you.

Regards / Stefan