In the left navigation pane, click the Settings icon
().
In the Manage Users section, click Edit
Roles.
Click Create New Role.
In the Enter name for a new role field, type a unique
name for the user role, and then click Save.
On the Edit
Roles page for the new user role, select or deselect the
Permissions check boxes to assign permissions to, or
remove permissions from, the user role.