Dataset to XML

I need to create an XML file with a set of tables. The requirement is that one of the tables is surrounded by an extra tag that indicates the plural form of the element below. As an example: for the orders of a customer the XML should look something like this:

<Customer>
  <Num>1234</Id>
  <Name>Lift Line Skiing</Name>
  <Orders>
    <Order>
      <Id>6</Id>
      <Date>08/02/1993</Date>
      <Amount>1.829,50</Amount>
    </Order>
  </Orders>
  ...

I can achieve this with an extra temp-table in my dataset like this:

DEFINE TEMP-TABLE ttCustomer LIKE customer.
DEFINE TEMP-TABLE ttOrders 
  FIELD custnum AS INTEGER. 
DEFINE TEMP-TABLE ttOrder LIKE order.

DEFINE DATASET dsCustOrders FOR ttCustomer, ttOrders, ttOrder
  DATA-RELATION drCustOrder FOR ttCustomer, ttOrders RELATION-FIELDS(custnum,custnum)
  DATA-RELATION drOrders FOR ttOrders, ttOrder RELATION-FIELDS(custnum,custnum).

But the table ttOrders is actually only needed to get the <Orders> tag in the XML file. Is there a better way?