Group assignments allow you to quickly score all members of the group at the same time. There are occasions, though, where you may want to provide a different score for specific students on group assignments, while still grading the group as a whole.
Note: Any changes made to individuals in the gradebook on groups assignments will also change the scores for their entire group.
If you chose to manually post grades, you must post grades to make them visible to students. Click the Options icon  for the assignment and select the Post grades option from the drop-down menu .