Another cool feature is the ability to allow for anonymous (non registered) chats.
Test it yourself:
https://chat.keys-daggers.org/channel/general
(on the bottom of page click on: OR TALK AS ANONYMOUS)
Another cool feature that I was easy able to enable is the Live Chat feature:
All I did is paste generated code into the Custom Header:
<!-- Start of Rocket.Chat Livechat Script -->
<script type="text/javascript">
(function(w, d, s, u) {
w.RocketChat = function(c) { w.RocketChat._.push(c) }; w.RocketChat._ = []; w.RocketChat.url = u;
var h = d.getElementsByTagName(s)[0], j = d.createElement(s);
j.async = true; j.src = 'https://chat.keys-daggers.org/packages/rocketchat_livechat/assets/rocketchat-livechat.min.js?_=secretnumber';
h.parentNode.insertBefore(j, h);
})(window, document, 'script', 'https://chat.keys-daggers.org/livechat');
</script>
<!-- End of Rocket.Chat Livechat Script -->
Then assign myself as a Live Chat agent in RocketChat admin.
Now when a user logs into my Flarum site, at the bottom right corner is a Live Chat pop up window that users can message me with.
