1) Course Management >> Grade Center >> Click 'Full Grade Center'
2) Place the cursor on the test/assignment you want to view, and click the drop-down button
3) Click 'Edit Column Information'
Primary Display: The grade type that is displayed to students and on Grade Center
Secondary: The grade type that is displayed to an instructor only and is displayed next to the primary display
(In case of Assignment) when you activate delegated grading, the instructor needs to review the final grade
Complete the setting and click 'Submit'