Laravel SleepingOwl Admin, onEdit: edit form + related datatable via fireDisplay in several tabs

gistfile1.txt

public function onEdit($id = null, $payload = [])
{
    $model = $id ? $this->getModelValue() : null;
    $tabs = AdminDisplay::tabbed();

    $main_form = AdminForm::panel()
        ->addBody([
            AdminFormElement::text('title', 'Название')->required(),
        ])
    ;
    $tabs->appendTab($main_form, 'Основное')->setName('main');
    
    if ($model) {
        $model->load(['keywords']);
        $payload = ['foo' => 'bar'];
        $keywords_list = AdminSection::getModel(\App\Keyword::class);
        $keywords_list = $keywords_list
            ->fireDisplay($payload)
            ->setParameters($payload)
        ;
        $tabs->appendTab($keywords_list, 'Keywords')->setName('keywords');
    }
    
    return $tabs;
}