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bitrix/templates/.default/components/bitrix/sale.order.ajax/visual_yandex/props.php

после   foreach($arSource as $arProperties){
добавил:
  switch ($arProperties["FIELD_NAME"]){
   case "ORDER_PROP_1":
    $arProperties["VALUE"] = $_POST["lastname"] . " " . $_POST["firstname"] . " " . $_POST["fathersname"];
   break;
   case "ORDER_PROP_2":
    $arProperties["VALUE"] = $_POST["email"];
   break;
   case "ORDER_PROP_3":
    $arProperties["VALUE"] = $_POST["phone"];
   break;
   case "ORDER_PROP_4":
    $arProperties["VALUE"] = $_POST["phone"];
   break;
   case "ORDER_PROP_5":
    $arProperties["VALUE"] = $_POST["city"];
   break;
   case "ORDER_PROP_7":
    $arProperties["VALUE"] = "Улица:" . $_POST["street"] . "дом" . $_POST["building"] . "корпус" . $_POST["suite"] . "квартира" . $_POST["flat"];
   break;
  }
Все работает +)