User roles
We currently use there permission levels for users.
- Subscriber
somebody who can only manage their profile - Contributor
somebody who can write and manage their own posts but cannot publish them - Author
somebody who can publish and manage their own posts - Editor
somebody who can publish and manage posts including the posts of other users - Administrator
somebody who has access to all the administration features within a single site - Super Admin
somebody with access to all the administration features within a all sites.

Change user role
This way you will change the role of the user on a single site. Please switch to other languages or regions and repeat the procedure.
Note: downgrading privileges for Super Admins (as shown in the video) has actually no effect, because Super Admins role override all locally set permissions. Use the procedure only on common users (Administator, Editors, Authors, Contributors and Subcribers).