In the Grade Center, all cells and column headers have a menu. For example, a test column's menu includes options for Column Statistics and Grade Questions. For a non-grade column, such as First Name, you only have the options to hide the column and sort the cells.
In the lower-right corner of the Grade Center, select Icon Legend to view the icon descriptions. Icons can appear in the Grade Center cells, attempt menus, column headers, on the Grade Details page, and on the Needs Grading page.