Sorry if this has been reported, although I wasn't able to find much online. I run a Tekkit server with numerous worlds, which I use multiverse for. I have a resource world where I require my
players to make quarries so as to not mess up my regular world. My players can place Remote Thermal Managers and Industrial Information Panels in the resource world, and they will save their settings, although in my regular world, the changes only appear to be made server-side. If player a makes the changes, and player B comes and looks at it, it looks as though the changes weren't made.