I got a problem in set configuration parameters for Sign Signature Field activity. In this activity, there is a field call Apprearance Option Spec. We can not set it in literal value as we want it configurable without changing the Process. So here we use variable. We create a process variable of type PDFSignatureAppearanceOptionSpec. In SetValue activity, we try to set all the fields of this variable. But the problem is most of the fields in this variable are not trivial, they have some class type, TextDirection or AppearanceType, it is hard to set the value for those fields in XPath Builder. Do you have any idea to initial a process variable that is PDFSignatureAppearanceOptionSpec type?