I have set up a role and when I asign a user to that role, and assign them globally, all works OK - but for all the categories - understandably.
If a assign the user to the role in a single category they loose the ability to access the admin rights on the front page. My problem is that I want to allow this administrator to load, and edit, students - but only for the single category.
Is this possible, and if so - what have I missed? I'm using 1.8.2, and would like to use the MyMoodle front page.
However, you can restrict the ability to enrol users in courses to let someone only enrol users in courses in a certain category.
And there may be other was to enforce the policy you want. For example, you could just write a page of rules for category administrators to follow, and then explain to them that everything they do is logged, so if they break the rules, you will be able to catch them.
That is why I am confused. If I set up an "course administrator" and allow rites to enrol/amend users then unless they are allocated globally the site admin block on the front page is not shown. Without the admin block they can not access the user add/upload features.
I am quite happy to allow the administrator to edit all users, but I want to prevent them for accessing some of the courses on site.
Since you have only 6 categories, which I imagine translates into 6 course administrators, you should be able to work at human level as Tim suggested.
Another approach could be to have a single person handling adding users, the User Administrator, and have course administrators reduced to dealing with enrollment etc at course level only. Moodles 1.8 and on have User Manager as a predefined role.