NativeXML - Create processing instructions (xml-stylesheet)

Question

I know how to do it with 'classic' XML object

begin
  piNode := XMLDocument1.DOMDocument.createProcessingInstruction('xml-stylesheet', 'type="text/xsl"  href="CDA2.xsl"');
  XMLDocument1.DOMDocument.insertBefore(piNode, XMLDocument1.DOMDocument.childNodes[1]);
end;

But now I have a project that uses NativeXML ; and I don't want to mix the code ; I want to use NativeXML to complete this task.

So ... my question is : Is there a function/method/workaround to do this with NativeXML.

Thank you!