As an admin, I am looking to message specific courses. Is there a way for admin to access courses in the inbox?
Not really. If you're involved with a single class that much, maybe consider adding yourself to the class in some role?
Kym, the only way to do this would be to add yourself to the course(s) and then when you go to the Inbox you'd see those courses as an option and you'd be able to message the students.
Retrieving data ...