Yes. The BMW Motorrad Connected app offers the function of importing routes and following them. To do this, select the menu "Trips", "Route import" and the storage location with the desired GPX file.
Note: For more information on importing a GPX file on iOS, BMW Motorrad also recommend this article: Route import on iOS .
You can find a detailed video with an exact explanation of how to export and import routes here. A maximum of 50 waypoints can be imported.
Here you can find out more about how to import a route to your ConnectedRide Navigator.