/** * Example of builder initialization */ public function register_builder() { $this->_builder = new Builder(Functions::get_key(), ['title' => __('Builder'), 'active_callback' => function () { return is_home() || is_front_page(); }]); $this->_builder->set_widgets(['Post', ['Video', 'Text'], 'Post', 'Video', 'Post', 'Post', ['Video', 'Text']]); }