MySQL Enterprise Monitor 8.0 Release Notes
Grants access to the monitored assets and groups. This permission must be used with the MySQL Instances permission.
None: no access to any monitored asset. As a result, no information is displayed.
Read-Only: Can view Groups of assets. This permission, or higher, is required for all other permissions which use Groups. Permissions such as Event Handling and Server Group Creation require access to the defined Groups. If the role requires access to those functional areas, this permission must be set.
Selecting Read-Only automatically selects Server Group Read-Only also.
Administer: Can edit group information and delete groups of assets, but cannot create groups. Creating a group requires the Server Group Creation permission.