Marks can be added/edited by class or by individual student.
If you wish to add/edit marks by student, open the Student form and go to the Marks page to /add/edit the individual marks.
If you wish to add/edit marks by class, open the Marks form. Once the Marks form is launched, you can select which section you wish to view/add/edit (sort by Year View or Period). Make sure Edit mode is enabled and then add/edit marks as desired.
If the grades that you expect are not displaying correctly or the Attempt/Earned credits are not right, please verify the course details (credits and term length) and Schools - Marking System Setup.
Changes to the credits and marking system values should be made with caution. When a mark is entered, records are created for Attempt & Earned credits. These values are based on the course settings and marking system values in effect at the point in time when the mark is entered. If a mark is deleted or changes are made to the course credit value or marking system values after a mark has been entered, the Attempt/Earned credits are not automatically recalculated (as that would impact calculated GPAs for all past years). The Attempt & Earned credits need to be manually updated by opening the marks form and then typing in the new values.