Appends a custom element, with the name specified in the
field, to the set of elements selected by the XPath expression.Specify the tag name of the XML element. This name can contain a namespace prefix if the prefix has been previously defined in this policy.
Specify an XPath 1.0 expression that returns a node set containing the elements to which the new elements should be appended.
For more information on using XPath expressions with policies, see XPath 1.0 Expressions.