[ncmncm]

The ability to copy traffic history from one homeserver to another is a huge deal. I have not succeeded in discovering any details of this rollout. What server versions support it? Does it suffice to copy using one client, once, and then all clients see the result? Or, only after pointing those other clients at the new server? Do the other clients only see old traffic, after, until they are switched over, too?

How can I have more thsn one homeserver watched? Do I need to run N independent client apps (e.g. Element and Fluffychat), with each pointed at one homeserver?

It is very hard to find out any details of what is handled where in Matrix. Nobody in rooms devoted to services acknowledges questions, never mind answering any.