<button id='button_custom_field_products' class='button-secondary'><?php _e('Add Static Field', 'woocommerce-order-export'); ?> </button> </div> </div> </div> <div id='fields_control_coupons' class='fields_control_style' style="display: none;"> <div class='div_meta' > <label><?php _e('Meta key', 'woocommerce-order-export'); ?> :</label><select id='select_custom_meta_coupons'> <?php foreach (WC_Order_Export_Data_Extractor::get_all_coupon_custom_meta_fields() as $meta_id => $meta_name) { echo "<option value={$meta_name} >{$meta_name}</option>"; } ?> </select> <label><?php _e('Column Name', 'woocommerce-order-export'); ?> :</label><input type='text' id='colname_custom_meta_coupons'/></label> <div style="text-align: right;"> <button id='button_custom_meta_coupons' class='button-secondary'><?php _e('Add Field', 'woocommerce-order-export'); ?> </button> </div> </div>