Stopping Students From Editing Answers BEFORE Submission

Hello! I need to setup a Formative that does NOT allow students to change answers once they have submitted an answer to an individual. I understand that there is an option that does not allow students to edit after submission. I am looking for before submission.
We are using Formative for the Intramural Quiz Bowl and do not want them to be able to scroll back through the form and change any answers.
Is this possible? Please advise. Thank you for your time.
Margaux Calemmo
School Librarian, GCHS