Help configuring Replication Graph

Hi, I’m working in a MMO which is expected to have a max of 100 players. I read about the replication graph and that is necessary but I can’t find how to configure it in my project. The Doc in unreal engine just describe it but don’t appear to explain how to actually implementing. ¿Can somebody help me with this? I’m Working on UE version 4.26

Thank you! But how much of this code can be used in ue 4.26? it’s a pretty old video.

I do believe all of it beyond differences in your project. I can’t think of anything that has changed in rep graph since production release that would invalidate the code in the vid.