From here, you will see a listing of all the grading "categories" available in Blackboard. You don't need to worry about categories you don't plan to use as Blackboard will ignore them. If you have any categories that have content in them but that you do not want considered in the Overall Grade for your class, click the "no" (circle with a line) icon, and all items in that category will still show in the Gradebook but will not be part of the Overall Grade.