Hi Pascal,
the concept of "open parcel" and "Close parcel" is confusing and has been deprecated with the new parcel fabric.
You can add boundary lines as well as connection lines as you see fit for your business requirements.
You can model road centerlines and any survey measurements (tie lines) that do not create a parcel boundary as a type of 'connection line' = they contribute to the network connectivity but do not form parcels.
You can also add boundary lines without creating a parcel polygon. Those lines will appear as topology errors and again you have a choice: either mark those as exceptions or modify your topology rules to meet your business requirements.
You can also contact your savvy distributor @Anonymous User @DaveHorwood
Amir
