Vertical form layout

Hi, you can do that using the Custom Fields add-on or if you do not have this extension you can do that by adding the code below in your theme functions.php file

add_filter( "adverts_form_load", "change_form_layout" );
function change_form_layout( $form ) {
  if( $form["name"] != "advert" ) {
    return $form;  
  }
  $form["layout"] = "stacked";
  return $form;
}

This will change the layout in [adverts_add] form.