function popup_elements()
 {
     $slider_options = FusionHelper::get_layerslider_slides();
     $this->config['subElements'] = array(array("name" => __('Select Slider', 'fusion-core'), "desc" => __('Select a slider group', 'fusion-core'), "id" => "fusion_slider", "type" => ElementTypeEnum::SELECT, "value" => "", "allowedValues" => $slider_options));
 }