Use this property to pass page parameters onto the page specified in the URL to XML property. This supports the Common Use Variables stated at the beginning of this help topic. You must encode the < and > symbol when using the parameters (e.g., < < and > >).
Example:
<PassThrough>
<Pass>
<PTType>get</PTType>
<PTRequest>SearchString</PTRequest>
<PTName>SearchString</PTName>
<PTDefault>[Me]</PTDefault>
</Pass>
</PassThrough>