[New Quizzes] Allow instructors to lock and unlock an available quiz
In classic quizzes, teacher have the option to "Lock this quiz now", which allows to see the quiz in the assignments and quizzes tools, but not open it. This feature is useful for situations where the instructor needs to make a change or realizes something is wrong and needs to be corrected. In new quizzes, the only means of locking an available quiz is to change the availability dates which would results in students seeing dates that are not accurate and require instructors to restore the original dates to reopen the quiz.
Give instructors the ability to lock and unlock an open (available) quizzes with a single click. Might be nice to allow instructors to add a text explanation of why the quiz was locked as well for full transparency.
instructor