def quickinfo(self):
        """
        Returns a short string describing some of the options of the actor.

        :return: the info, None if not available
        :rtype: str
        """
        return "incremental: " + str(self.config["incremental"]) \
               + ", custom: " + str(self.config["use_custom_loader"]) \
               + ", loader: " + base.to_commandline(self.config["custom_loader"])