Please do not follow eralms.mkcl.org in your case. Its for center's in Maharashtra.
For BSDM People, please follow this link http://bsdmera2018.mkcl.org/
Also, installing era explorer on client machine & sharing content across each machine shall be very common practice for center coordinator.
I suggest you to contact your RM & get knowledge of all this.
For your question, there's no need to save content on each client machine. You just save on server machine, keep your client in same network. Content will be shared automatically.
You can also check various videos on youtube, search as "ERA 2018 MKCL"