Currently users have 4.0.7 and they are planning to upgrade to 6.0.4. No proxy server used currently.
current topology is one jts has two ccm application registered.
For example https://prortc/jts has registered https://prortc/ccm and https://testrtc/ccm
they want to have a new https://testrtc/jts for https://oprtc/ccm (unregister https://testrtc/ccm from https://prortc/jts).

Obviously they want to keep testrtc/ccm data and it is not necessary for them to keep anything in new jts if that would work for them.

I am thinking that they may restore the exact same staging data in a new environment with jts and the two ccm registered. Then unregister https://prortc/ccm from https://prortc/jts on the staging environment,
Then do server rename for the new staging environment to make it as https://testrtc/jts, but the ccm applications seem to have problem in server rename as it is already testrtc/ccm.
Can the server rename be done for jts only on staging?

Or there is any other way to achieve this separation?
Appreciate if anyone can share some thoughts here. Thanks a lot.