Thank you for the topic.
If you want to be able to change the chosen answer options, you can head to the Quizzes > particular quiz > Settings tab and tick the Next and Previous buttons.
See the screenshot below:
They were already checked. However, I found that one more thing had to be changed.
Under the particular quiz -> Settings: I had to uncheck “Show correct answers”. Now the user can change selected options before proceeding to the next question.
Thank you for your reply.
Yes, you are right.
Glad to hear that you managed to achieve your desired result.
Enjoy the plugin, and, in the meantime, feel free to open a new topic in case of any further questions.