In some cases, you might need to interact with your students on the blackboard. Before that, you should authorize them.
What features can be authorized to students?
Authorize/Unauthorize a single student
Authorize/Unauthorize all students
What features can be authorized to students?
Once authorized, students can
Use blackboard tools
Use Cloud
Share screen
Authorize/Unauthorize a single student
Student window
Find the student you want to authorize/unauthorize, and click here.

In Roster
Operating in Roster is a better choice if you can't see all the students in the seating area.
Open Roster, and find the student you want to authorize/unauthorize. Click here.

Authorize/Unauthorize all students
Click 「Control」, and choose to authorize or unauthorize all students in your class.

You can also operate in Roster. Click here to authorize or unauthorize all students.
