Modules\Sections\Module::adminPanelMenuRegister PHP Method

    protected function adminPanelMenuRegister()
    {
        $item = new Menu('Categories', ['menu_name' => 'section.categories', 'url' => '#', 'link_attr' => ['icon' => 'fa fa-list-alt fa-fw'], 'meta_attr' => ['onlyDevelopersMode' => false, 'sort' => 180], 'sub_menu' => [new Menu('Show all categories', ['menu_name' => 'categories.list', 'url' => '/admin/sections', 'link_attr' => ['icon' => 'fa fa-file-o fa-fw'], 'meta_attr' => ['onlyDevelopersMode' => false]]), new Menu('Add new category', ['menu_name' => 'categories.add', 'url' => '/admin/sections/add', 'link_attr' => ['icon' => 'fa fa-pencil-square-o fa-fw'], 'meta_attr' => ['onlyDevelopersMode' => false]])]]);
        $this->container->get('adminMenuLeft')->add($item);
    }