This can be used to exclude students from individual assignments. This is useful if two class
sections merge or a student transfers from a different section several weeks into a semester.
It is also useful for extenuating circumstances: sickness, injury, etc.
There are three columns:
To exclude students click the assignment in the middle and then click the students name in the left column (holding down CTRL or APPLE will allow selection of multiple items). Then click "Exclude from Grading" at the bottom. The student(s) should be moved from the left column to the right, and they will now be excluded from grade calculations for that assignment.
To include students that have been excluded; Choose the appropriate assignment, click the student in the right column and finally "Include in Grading" at the bottom. The student should be moved from the right column to the left column.