You can modify the schedule by clicking on the My Classes option in the main menu where the list of classes will be displayed, as shown below.
The group schedule can be modified only by the user who created that schedule. It can be either the school administrator or the teacher.
Click the edit icon at the bottom right of the group class view. You will be redirected to the Edit Group Class form pre-populated with the current information, shown below.
Once the group schedule is created, you cannot modify the course and its offer. In the case the information is not reflected properly, you are able to delete the existing schedules and their enrollments.