To only calculate grades for specific students navigate to the Class and select the Grading Tab:
  1. Click Calculate
  2. Click Select All and deselect the names of the Students you do not want to calculate grades for
  3. Click Save and Close to calculate the grades for the selected Students
OR
  1. Click Calculate
  2. Select the names of the Students you would like to calculate grade for by clicking on the Students name(s)
  3. Click Save and Close to calculate the grades for the Students selected