How can I get xsd of a data structure containing virtual entities

It used to be available when a user right-clicks in the Origam Architect on a data structrure and then clicked on ‘Show XML’. Now it doesn’t show xsd anymore. I’d like to use the xsd for defining a datastructure in a workflow service adapter project (passing typed objects through the workflow service method interface)

The XSD is shown in the Output window just after you click on the data structure.