In this update, the previously selected Datum and Zone will be stored and used as defaults in any window that requires them, including the import wizards. As an exception, a new Design in an existing project file with at least one other Design will always use the Datum/Zone in the first Design as the default. This makes sense since the project file should only contain Designs related to the same project area.
As a further enhancement for existing Designs, when you select the desired Datum, the Zone selection list will only be populated with zones that cover the Lat/Long range area of the Design. This drastically cuts down on the number of choices you may need to make.