How do I create a grade column?

By default there should already be a Weighted Total and a Total column present in the grade center. If you find yourself needing to add one of these hover your mouse over Create Calculated Column at the top of the grade center and select Total Column or Weighted Column.

Clicking Create Column will create a new grade center column that can be given a name, point value, due date, and included or excluded from grade center calculations. This method does not require a corresponding graded item to be present in the course.