Backend\Modules\Settings\Installer\Installer::install PHP Method

    public function install()
    {
        // add 'settings' as a module
        $this->addModule('Settings');
        // import locale
        $this->importLocale(__DIR__ . '/Data/locale.xml');
        // module rights
        $this->setModuleRights(1, 'Settings');
        // action rights
        $this->setActionRights(1, 'Settings', 'Index');
        $this->setActionRights(1, 'Settings', 'Email');
        $this->setActionRights(1, 'Settings', 'Seo');
        $this->setActionRights(1, 'Settings', 'TestEmailConnection');
        // set navigation (settings should be last tab)
        $navigationSettingsId = $this->setNavigation(null, 'Settings', null, null, 999);
        // general navigation
        $this->setNavigation($navigationSettingsId, 'General', 'settings/index', null, 1);
        $navigationAdvancedId = $this->setNavigation($navigationSettingsId, 'Advanced', null, null, 2);
        $this->setNavigation($navigationAdvancedId, 'Email', 'settings/email');
        $this->setNavigation($navigationAdvancedId, 'SEO', 'settings/seo');
        // modules settings navigation
        $this->setNavigation($navigationSettingsId, 'Modules', null, null, 6);
        // themes settings navigation
        $this->setNavigation($navigationSettingsId, 'Themes', null, null, 7);
    }