Host Only View

Hello everyone!

I work for a Pk-12 school system, and we are trying to see if we can use the host only view. I am not sure what it is called, but we heard about a feature where the host can see the other videos, but the participants cannot. If this is turned on at the admin level, do all teachers in my school need to do that? Or can they have the option to see the class the way they want?