Tidy formatting of XML annotation/documentation

Hi all... first of all, I love the tool.

One question:  How do I get it to not format annotation/documentation?

<xs:simple type .... >
<xs:annotation>
<xs:documentation>
This is a 
block of text that I do not
want tidy to wrap.
</xs:documentation>
</xs:annotation>
....

Thanks...
James