silverstripe-docsviewer/docs/en/Configuration-Options.md

Helpful Configuration Options

DocumentationService::set_ignored_files(array());

If you want to ignore (hide) certain file types from being included.

DocumentationService::set_automatic_registration(false);

By default the documentation system will parse all the directories in your project and include the documentation. If you want to only specify a few folders you can disable it with the above.

DocumentationService::register($module, $path, $version = 'current', $lang = 'en', $major_release = false)

Registers a module to be included in the system (if automatic registration is off or you need to load a module outside a documentation path).

DocumentationService::unregister($module, $version = false, $lang = false)

Unregister a module (removes from documentation list). You can specify the module, the version and the lang. If no version is specified then all folders of that lang are removed. If you do not specify a version or lang the whole module will be removed from the documentation.