Querying XML Documents Using XPath
You can use the XML Path Language (XPath) to query XML documents to obtain a subset of the information in that document. You can also query XML Schema and XSLT, provided you open the XSLT using the XML Editor. (You cannot query DTD schema because it is not XML.)
In Stylus Studio, you query XML documents using the XPath Query Editor. To learn more about XPath and how to use the XPath Query Editor, see Chapter 10Writing XPath Expressions.