@classmethod
def featurePermissionManager(cls):
    """
        Class method to get a reference to the feature permission manager.
        
        @return reference to the feature permission manager
        @rtype FeaturePermissionManager
        """
    if cls._featurePermissionManager is None:
        from .FeaturePermissions.FeaturePermissionManager import FeaturePermissionManager
        cls._featurePermissionManager = FeaturePermissionManager()
    return cls._featurePermissionManager
