It is possible to import a set of previous exported streams by clicking the Import Streams button. After that an exported stream can be selected which has the extension streams.
In the Import Streams dialog you can toggle which streams of the attached file should be imported for each application. If a certain stream is already part of the current configuration, it will be marked as "Exists". In case an already existing stream will be toggled and imported the corresponding stream will be replaced. The new stream settings may differ from the actual one. All new streams that are not present in the current configuration will be marked as "New".
When the desired import modification has been set the execution can be started by confirming with "Import". Before proceeding the import action all existing streams can be deleted beforehand by enabling the switch "Delete all existing Streams".