Display left menu displays a navigation bar on the left of the slide-show window. The navigation bar enables the student to navigate to any slide. Without that navigation bar, the student must proceed through the slide show in the order that Moodle displays the lesson pages and must complete the lesson to exit (or the student can force the window to close).
Sometimes, you may want a student to complete the entire lesson, in order, before allowing them to move around the lesson freely. The setting for Minimum grade to display menu accomplishes this. Only if the student achieved the specified grade they will see the navigation menu. You can use this setting to ensure that the student goes ...