An exported process definition can be imported into the application by using the “Import -> XML” menu item.  Select an existing process definition and click the “Import -> XML” menu item.  Using the import dialog, select the file, and import the XML. The import file shall overwrite the existing definition and using snapshot management to make a copy prior is suggested.  

UI for the import dialog looks as follows:

Import process definition Step properties

An exported process definition's step properties can be imported into the application by using the “Import -> Step Properties” menu item.  Select an existing process definition and click the “Import -> Step Properties” menu item.  Using the import dialog, select the file, and import the XML.