Are you talking about the web server used for cPanel backends? (i.e. the services that run on port 2083, 2087, and 2096?)
Or are you talking about the public facing webserver? Ports 80 and 443?
The cPanel backend is probably a customized web server - I'm not even sure if it's Apache per se - but has been heavily modified (or written from the ground up... who knows). It's not going to follow the same configuration setup as the public facing web server.
It's not possible to configure cpsrvd (the service associated with the cPanel & WHM interfaces) the way you can configure the Apache web server provided as part of EasyApache 4.
Is there a particular need you are trying to address?