Hello @richardson5800
Welcome to the Canvas Community. Thank you for posting your question. Gradebook columns are not created on your Grades screen. In order to create a new column in Grades, you will need to go to your "Assignments", "Quizzes", or "Discussions" (if you're creating a graded discussion) index pages to create a corresponding graded assignment, graded quiz, or graded discussion topic. Once you create that item and put the details in for that graded item, you will see it as a new column in your Grades page.
Here are some tutorial videos that may be of help:
I hope this helps, Jimmy. Sing out if you have any other questions about this...thanks!
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