Can you provide a topic explaining Cisco’s Multicast Service Reflection for changing an inbound Multicast address to a Unicast address and changing an inbound Multicast address to a different Multicast address? Cisco has a document on configuring a Cisco router running Fuji IOS 16.9.4, but doesn’t really explain how the destination multicast address is changed.
I suggest you go to the Member Ideas page (link below) and make your suggestion official. You may find that others have made similar suggestions as well:
In the meantime, I have found the document you stated, but you may also find this document useful as well:
It may be able to answer more of your questions.
I hope this has been helpful!