Show timetable comments on timetable views. Enable for the following user types

Academic Settings / Timetable / Timetable Settings / Visibility Settings & Rights / Show timetable comments on timetable views. Enable for the following user types

Setting -> Active -> Parent , Student , Teacher (Figure 1)

If a comment is created on a course in the timetable

Figure 1

Appears in the users’ timetable when the mouse cursor is over the course (Figure 2)

Figure 2

Setting -> Inactive
Comments are not shown to the student