MTS roles represent sets of system-level privileges that are required for a particular business function. They are set at the package level. The CML.pak file, an MTS package, has two prepackaged roles defined — Admin and User. You need to add the Library Admin account to the Admin role of the existing package. For more implementation information, see Component Packaging.
To assign Windows NT user accounts to the CML roles
Note It is OK to assign the built-in Everyone account to the User role, but you should only assign library administrators to the Admin role.