A course schedule is the rules by which a lesson is opened for a student. It is configured in the Schedule tab within the course—separate from the classroom schedule on the control panel.
The group schedule sets the general dates and times for lessons to start for a cohort (for cohorts, based on the selected cohort). The individual schedule sets each lesson's schedule based on the student's start date: immediately, in N days, and so on.
Select a type in the Schedule Type block and save by clicking Apply. Please note: once at least one student has started learning, the type cannot be changed—for more information, see "Why can't I change the schedule type after learning has started?" How to configure each option is described in the adjacent cards.
To compare schedule types, open the Courses section, select a course, and go to the Schedule tab on its page.