I need a detailed description of the function of the user levels (guest, ghost, student, tutor, mentor, instructor, administrator) in the system. Where are the differences.
Thanks for your help
You are free to configure any permission for each role to suite your needs from the menu management system.
The only predefined limitation is for the ghost user, that won't be listed among the course users (only for the course info page, will be listed in the stats), and can't see the information about the time spent in the course (table on the left under the course menu)