When you create a reservation with YouBook, you can already choose the basic board for that stay. Please note that the board refers to the whole reservation and not to individual days. If, for example, John Snow stays for three nights with breakfast and, for the last night, he also wants lunch and dinner, you can create the reservation with breakfast as the basic board:
Once created, you can add lunch and dinner inside the reservation, associating them with a specific day and a specific room or guest. To do that, access the reservation detail at "MEALS" section and click on the +:
☞ Docs: ZaK - Reservation Detail
If you have predefined prices for your meals, you can already set them in the section below. This way, when you add them to your reservations, ZaK will already suggest you the price:
↳ Useful Link: ZaK > Settings > Configurations > Generic Settings