InDesign CS Whitespace Handling via Processing Instruction (Does not help :-( )
<?xml version="1.0" encoding="UTF-8"?>
<?whitespace-handling use-tags?>
<test xmlns:aid3="http://ns.adobe.com/AdobeInDesign/3.0/">
<p>Test Tab:<aid3:tab/>End of Paragraph here:<aid3:br/>End</p>
</test>