I get the solution…
$owner_walker_registration = new PMProRH_Field(“owner_or_walker_registration”, “select”, array(“label”=>”Owner / Walker Registration”, “profile”=>true, “class”=>”owner_reg”, “options”=>array(“one_owne_or_walker”=>”One owner/walker”, “two_owners_or_walkers”=>”Two owners/walkers”)));
pmprorh_add_registration_field(“checkout_boxes”, $owner_walker_registration);
just adding “profile”=>true
