Change red5 url

I have a federated server I want to change the red5 url to point to another server. This used to work but now I can’t get it working. How would I go about pointing the red5 url to another server?

I have changed the general red5 application name to the other server I’m trying to connect to and this isn’t working. This use to work with cross multi domains. I beleive this is a bug.