public function register_related_object( $name, $label, $options = null ) {

		if ( empty( $name ) || empty( $label ) ) {
			return false;
		}

		$related_object = array(
			'label'         => $label,
			'group'         => 'Custom Relationships',
			'simple'        => true,
			'bidirectional' => false,
			'data'          => array(),
			'data_callback' => null,
		);

		$related_object = array_merge( $related_object, $options );

		self::$custom_related_objects[ $name ] = $related_object;

		return true;

	}