[Twisted-web] Athena LiveElement: how to putChild under unique session URL?

Hello All, LiveElement is fantastic, but I'm too stupid to find out, how to put temporary page under sessiop URL... This work for js modules at start like: http://localhost:8080/user/<HASH clientID>/jsmodule/athena_test I'd like to add temporary during run time something like: http://localhost:8080/user/<HASH clientID>/your_data page or staticFile, which should exists only few minutes. How can I add a child to the livepage session path? Best regards, Paul