I understand that, but the only problem is that the apartment where my party stays is the only place available to me. At this point in the game, we do not have a ship. When we go to the apartment, there is no option as in the original to select your party when you leave the room. Therefore it is not possible to truly be alone...unless you can think of another way.
EDIT: Never mind. i was not aware of the option to edit your party members through the in-game menues.