The following toplevel modules are provided by the Core:
All modules requiring a page tree by default. These modules are mostly used to manage content that should be displayed in the frontend.
site: Site Management
Settings for the complete site such as redirects and site settings.
All modules requiring a file system tree such as modules dealing with file metadata, uploading etc.
tools: Admin Tools
By convention modules in this toplevel section should only be available for admins with system maintainer rights. Therefore the configuration array of a module displayed here should always have the following key-value pair:
'access' => 'systemMaintainer'.
In this toplevel section modules that deal with installing and updating the Core and extensions are available. System-wide settings are also found here.
By convention, modules in this toplevel section should only be accessible by admins. Therefore the configuration array of a module displayed here should always have the following key-value pair:
'access' => 'admin'.
In this toplevel section modules are situated that deal with backend user rights or might reveal security relevant data.
Register a custom toplevel module¶
Toplevel modules like Web or File are registered in the
Configuration/Backend/Modules.php. All toplevel modules provided by
the Core are registered in EXT:core so you can look at
typo3/sysext/core/Configuration/Backend/Modules.php for reference.
Register a new toplevel module in your extension:
return [ 'myextension' => [ 'labels' => 'LLL:EXT:my_extension/Resources/Private/Language/locallang_mod_web.xlf', 'iconIdentifier' => 'modulegroup-myextension', 'navigationComponent' => 'TYPO3/CMS/Backend/PageTree/PageTreeElement', ] ];