www.wysiwygwebbuilder.com

Just as an example, can a simple text based chat similar to the appearance of Facebook be created directly by WYSIWYG?

A chat is a script that you will need to install on the server because it requires a database.
After you have it up and running on the server, you can embed the code in your WWB website.

Thank you Pablo.
If anyone can point me in the direction of suitable scripts that would be very helpful.

Maybe this will be helpful?
https://www.wysiwygwebbuilder.com/forum ... hp?t=94743

I had seen that link.
I have also found WaterCooler-Chat which appears well thought out.
https://github.com/jonufele/WaterCooler-Chat

Open source Rocket Chat

https://products.containerize.com/live-chat/rocketchat/

Features
Most of the basic features for chatting, sharing files, and integrating with other apps like Trello or Google Drive are available in every version. However for some advanced features you’ll have to choose paid plans of the Rocket.Chat. Following are the key features of Rocket Chat

Free Open Source Software
Hassle free MIT license
BYOS (bring your own server)
Multiple Rooms
Direct Messages
Private Groups
Public Channels
Desktop and Mobile Notifications
Edit and Delete Sent Messages
Mentions
Avatars
Markdown
Emojis
Choose between 3 themes: Light, Dark, Black
Sort conversations alphabetically or group by activity, unread or favourites
Transcripts / History
File Upload / Sharing
I18n - [Internationalization with Lingohub]
Hubot Friendly - [Hubot Integration Project]
Media Embeds
Link Previews
LDAP Authentication
REST-full APIs
Remote Locations Video Monitoring
Native Cross-Platform Desktop Application

https://github.com/videowhisper/HTML5-Videochat-PHP

HTML5 Videochat - Plain PHP / Live Streaming: Broadcast & Playback
This setup implements the room lobby with simple live video streaming (from performer to participants) and text chat. This is a simple embedding preview edition, with simple scripts to embed app and showcase few features.
+ Official Live Demo: Live Streaming / HTML5 Videochat - Standalone PHP - Live Demo
+ Download: GitHub: Live Streaming / HTML5 Videochat PHP
+ All HTML5 Feature Demos: Video Call | Live Streaming | Cam/Mic Recorder
+ Compatible hosting for all features including live streaming servers and video tools: WebRTC Host
+ Technical support: VideoWhisper.com
+ Turnkey Cam Site Solution: Turnkey HTML5 Videochat Site - Advanced capabilities (including video conferencing, collaboration, tips, pay per minute,

https://youtu.be/vmI7oRrBLwE
Messenger Chat System in PHP and MYSQL with
Source code I Source Code & Proiects