I'm looking for a comprehensive user guide for the Grades tool. I learnt how to use it some years ago with Moodle 2.x (spending a lot of time to understand it), when it was called Gradebook. I haven't used it since then and now I need to use it in different scenarios and with different requirements, and the notes I made at that time are mostly not applicable in Moodle 3.5.x.
I read the Moodle Docs documentation and some guides, but it gives a general idea of what it can do. I know what it can do, but not how to use it efficiently. Can you recommend me something?