questions about server setup

[Abbode]

Hello,

I'm trying to set a server using the rust ss, so far it's working for 1 client, but I have some extra questions for more advanced setup.

1. Where should I apply the configurations mentioned here ?
   Is it for ss or for ss-mgr? what file do they go into? And where is this local file?
2. Is the server IP necessary for server setup ? why should I tell the server it's IP? It makes much more sense to if I have to use it for the client not for the server.
3. For the server config file, can I set the port to be a range of ports? if so, how? And can I set the server address as a link strings? (a domain name that is).
4. Is there a way for the server to be setup in a way to forward data ONLY for a list of IPs/domain-names ? If so, how?
5. Is there a way for the server to block connections to certain IPs/domain-names ? If so, how?
6. Is there a way to set a server as a relay node for some IPs/domains? (forwarding packets to another ss server).

In general, the documentation can use better explanation about the setup process.
Thanks for your work.