Hello there, @pe759631 ...
Are you asking how to remove a column from your Canvas Gradebook? If so, each column in your Gradebook is associated with an item listed on the "Assignments" screen within your course. You can either delete the assignment (an actual assignment, a graded discussion, or a graded quiz) from the "Assignments" screen, or you can unpublish the assignment so that it would not show up as a column in your Gradebook.
If this is not what you are asking about, could you please provide some additional clarification on your question? Thanks, and looking forward to hearing back from you soon!
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