The List/Modify Users feature allows instructors to modify a users' role in your course only.
From the Control Panel:
1. Click on List/Modify Users in the User Management section.
2. Click on the Properties button on the right side of their name.
3. Scroll down to the bottom of the page and click on the Submit button.User Roles
Builder - This role allows you to add content to the course through the Content Areas and the Course Tools on the Course Control Panel.
Grader - This role allows you to access all areas under Assessments.
Guest - This role allows you to view areas of the course, but cannot participate in any way.
Student - This role allows you to access all available course content and will be graded on Assessments.
Teacher - This role allows you to control all aspects of the course through the Control Panel.
Teacher’s Assistant - This role allows you to control most aspects of the course through the Control Panel.
More information
Q: Why can’t I modify some of the fields?
A: Not all properties may be modified, depending on the configuration
of the Blackboard system and how it is integrated with the student information
system. Your campus Blackboard system may be integrated and that feature is
disabled.
Q: What are the different roles used for?
A: Different roles allow access to different features of the
Blackboard system
Q: What does Available mean?
A: If Yes is selected for this question, the user will have
access to the course Web site. If No is selected, the user will not be able
to access the course.