You can switch between following available layouts ‘Without Sidebar’, ‘Left Sidebar’, ‘Right Sidebar’ and ‘Both Sidebar’.
And also refer the link http://wesupport.wpengine.com/knowledge-base/sidebar-settings/ for how to create/assign the sidebar widgets.
And also here you can assign the subtitle and quiz durations in mins.
2. Number of retakes
Here you can assign the number of retakes to the quiz option.This option is override by the teachers grading option where you can chage the status to the retakes.
3. Quiz Message & Randomized option
Here you can give the quiz messages which is displayed after completion of the quiz. And you can randomize the questions order.
Here you can assign the pass percentage of the quiz .
6. Auto Evalution
When you enable the Auto Evaluation option the questions are evaluated automatically and the results are displayed (When the Show Correct Answer and Answer Explanation option is Enabled) after the completion of the quiz.
If you disable this option the the questions are evaluated manually and the quiz is graded by the evaluator. When the test graded then the student receives the mail with the test result.
When you enable the public quiz option user will be able to take this quiz without assigning it to any lessons.