As you know, once you have entered a grade in the gradebook manually, you have to continue to update it manually in the gradebook. The gradebook overwrites/supersedes the assignment interface.

However, you can continue to update both the grade and grade feedback for the manually entered grade by following the steps below:

1. Login to Moodle and click on the course for which you wish to update the manually entered grades.
2. In your course, scroll down until you see the “Settings” block in the left column.
3. Click on the “Grades” link in the “Settings” block under “Course Administration.”
   
4. Once you are on the “Grader Report” screen, click the “Turn editing on” button in the upper right.
5. When the grade entry boxes appear, there will also be the familiar ‘gray wrench’ icon to update that area. Click on the ‘gray wrench’ update icon for the grade/feedback you wish to change.
   
6. On the “Edit Grade” screen, update the grade and/or feedback.
   
7. Scroll down to the bottom and click the “Save changes” button. You updates will be saved and you will be brought back to the “Grader Report” page.