Appends deep copies of the nodes specified by the source field to the set of elements specified by the destination field.
Specify the XPath 1.0 expression that returns a node set containing the nodes to be copied.
Specify the XPath 1.0 expression that returns a node set containing the elements to which the copied nodes are to be appended.
For more information on using XPath expressions with policies, see XPath 1.0 Expressions.