On the nav bar, click the Activities menu, then select Rubrics.
On the Rubrics page, select the name of the rubric you wish to edit.
Click the action menu for to the rubric criteria group you want to copy, then select Copy Criteria Group.
The new criteria group is added under the original criteria group with the name Copy of [name of original criteria group name]. Click the title and type a replacement title. The update will save automatically.
Click in criteria and/or level for the copied criteria group to update the wording as needed.
When you are finished updating the rubric, click Close.