Exam mode is different from an assignment that you can control that the user can only work on the exam when it is published and not on any other assignment.
How do you schedule for an exam to start?
Manual/Scheduled means everyone will take the exam at the same time and you can either publish it at the time or control it via "Access Date". Alternatively, you can publish the exam and control the amount of time a learner has to take the exam.
What is a Show End Exam Button?
"Show End Exam Button" means that there is an "End Exam" button which the learner presses and then go work on their other assignments.
What is a Show Exam Timer?
Show Exam Timer counts down the time.
Do exams auto-submit when the time is over?
We moved the auto submission to all assignments and that is why it is now generically under the Assignment Options
What is SEB?
SEB - is integration to "Safe Exam Browser".