I've seen two other topics discussing this, but I have seen no direct answer.
Yes, I can add a role at the category level, but I need to know, specifically if it is possible to add a hidden role at the category level.
Is it possible, and if so, how? Everything I have tried has put the category level role user into the participant list in the course.
Thanks in advance,
Don
Moodle 2.2.2 (Build: 20120312)