The rpp --automaticMigration command automatically imports instances. However, you can also import instances independently. You can import instances from a file that was exported with the export function of the Design Explorer view or produced by the Pacbase batch migration procedures. These instances will populate the selected location of the Design Explorer view.
An xml technical file is created when the import ends. This file is required if you want to import updates from the journal later. It gathers information that is not included in the new Rational Programming Patterns model, and the list of the instances that were previously imported.