Assign Security Roles
This is where you assign individual users (as set up in System Admin > Users > User Maintenance against roles as setup in System Admin > Users > Security Role Permissions.
Once the users have been assigned to a role they will inherit the permissions set up for that role.
The screen can be operated by either:
Selecting the user and assigning one or more roles.
Selecting the role and assigning one or more users.
It is possible for an individual user to be assigned to multiple roles. If this occurs, then the user will inherit a combination of the minimum permissions from the multiple roles.