Make sure you have at least 3 courses on your site. Enrol your admin user in one course (any role). Enable the admin setting calendar_admincanseeall Go to the calendar. Verify the admin can see events from all courses, or choose any specific course. Verify the admin can create an event in any course. Disable the admin setting calendar_admincanseeall Verify the admin is only shown events from the course they are enrolled in. Verify the list of courses the admin can filter by only contains the course they are enrolled in + All courses. Verify from the site calendar, the admin can choose to create an event in any course calendar (by changing the course in the new event modal). Go to a specific course the admin is NOT enrolled in. Go to the course calendar. Verify you can see events for this course, and the course appears in the list of courses the admin can filter the calendar by. Note that after selecting a different course from the filter, the filter will only show courses that the admin user is enrolled in + All courses. Verify you can create a new event in any course calendar from this course calendar (by changing the course in the new event modal).