There are two methods to add instructors/leaders, depending upon their role in your course/organization.
PRINCIPAL/SECONDARY INSTRUCTORS: Add them in Banner. Automation enrolls "core" (principal and secondary) course faculty into course sites in Bb Learn based on their assignment to courses in Banner. Core faculty need to be assigned in Banner in order to view rosters, enter grades and to get credit for teaching in annual reporting. Email the Registrar's Office (email@example.com) to add or remove core faculty.
OTHER INSTRUCTORS: Principal instructors can add them. Some course faculty are not "principal" instructors but may still need access to the Bb Learn course site. Principal instructors should add these other faculty to their course. Any faculty or staff member with full editing rights in a course/organization can now add other faculty to their course or organization.
You must already be enrolled into the course/organization with instructor / leader rights before you can add other users.