I've noticed that the the v10 Doors are lacking the "Rough Opening" parameter under "Options" from the v9 Doors. Currently in 10, the overall opening of a door is the "X" or "Y" plus the thickness of the jamb. This missing parameter allowed the overall to exclude the jamb.
This makes no sense and needs to be fixed by GS. If you enter the true rough opening of the unit, that is what the opening size should be. Period.