We were lucky enough to get free dining this fall so this is our 1st time using the dining plan. We have 2 rooms booked: 1 for myself, DH & 2 DDs & 1 for my parents. We paid to upgrade from QS plan to regular plan with the agreement that my parents would take care of gratuity for our TS meals. I know credits are assigned to each room so I know we would get 2 checks at the end of our meal. Can my parents just combine the gratuity and leave it on 1 check? Or do they have to leave 2 separate gratuity charges one for each check?