EAP 7.4 Configuration guide does not describe ejb3 subsystem configuration

The EAP 7.4 Configuration Guide has as its aim "instructions for setting up and maintaining Red Hat JBoss Enterprise Application Platform, including running applications and services".

The guide has the following sections:
1. Introduction
2. Starting an Stopping EAP
3. JBoss EAP Management
4. Network and Port Configuration
5. JBoss EAP Security
6. JBoss EAP Classloading
7. Deploying Applications
8. Domain Management
9. Configuring JVM Settings
10. Mail Subsystem
11. Logging with JBoss EAP
12. Datasource Management
13. Datasource Management with Agroal
14. Configuring the Transactions Subsystem
15. Jakarta Connectors Management
16. Configuring the Web Server
17. Configuring Remoting
18. Configuring the IO Subsystem
20. Configuring Web Services
21. Jakarta Server Faces Configuration
22. Configuring Batch Applications
23. Configuring the Naming Subsystem
24. Configuring High Availability
Appendix Reference Material
...

What is missing here is a description of how to configure the EJB subsystem (actually, the ejb3 subsystem), which is, along with the web subsystem, one of the most important subsystems in the server. Further, the EJB subsystem makes use of many other subsystems defined on the server and its configuration is much more complex than most.

We need a section of this document to describe how to configure the subsystem, to act as the main starting point for configuration, even if there may be related content (e.g the performance guide) located elsewhere.