alright so there is an easy guide to follow, the other way would require you to have your own server, and a computer that ran Linux.
the guide is here.
https://steemit.com/steemit/@ekitcho/do-you-like-steemit-chat-set-up-your-own-chat-for-free-in-a-few-clicks
it is amazing what you can find with google.
hope this helps
thank you for your time and have a good one!!
RE: Create a Group Chat Room In Rocket.Chat?