one document root, best way to do this?

Hello everyone,

English is not my mother language, so if my question is unclear, please say so.

I want to reinstall my VPS in a better way than it is right now. What I want to accomplish is that all (new) domains when I add them, automatically point to the same document root (the same folder).

How do I do this now? I use one "main" user. I use this user to log in to cPanel and when I add a new domain I add it as an "add-on domain". This way I can point all add-on domains to the same document root.

However, Im wondering if there is somehow a better solution to accomplish this. I'd rather add each domain as a "normal" domain, instead of an add-on domain.

Is there a solution to do this? For example change a default vhost template or something?

Actually it should be like this. I log in to WHM as root. Then when I create a user, the document root of this user should always be the same. Can it be done?

Once again, if my question is unclear, please say so!