In section “Rooms”  you can find next:

Rooms -> Rooms – Here you can find all your rooms:

Rooms -> Add New Room – Here you can add your new room (add data, featured image, room type, gallery, price and more):

Rooms -> Room Types – Here you can add or delete room types (of course this section must be completed before adding new rooms):

Rooms -> Room  Capacites – Here you can change room capacites (of course this section must be completed before adding new rooms):