Adding additional grades directly into the gradebook

We have looked at how we can add graded activities to a Moodle course so that they can be awarded a mark and used with the gradebook. This is the main way in which we grade work as the students need to complete something to be graded (whether this is an assignment, quiz, discussion, or other Moodle activity). With the offline assignment type, it is possible to have an activity on the Moodle course where there is no requirement for the student to complete any work online but still allows us to provide feedback and grades on activities such as class presentations or practical work.

However, what if you would like a grade to be added to the gradebook that is not linked to any activities? Perhaps students receive an additional grade based on their attendance in lessons. You may want the grade to be calculated within the gradebook for the final course grade, but you do not want it to appear as an activity within the Moodle course. This is where...