Now when assigning a room you will see a slightly different drop-down menu. Occupied nights pre and post-stay displayed along with monthly occupancy. These changes will help properties reduce gaps between bookings and identify back-to-back stays. 

Unavailable rooms - greyed out and unable to select

Red dates - the room is occupied 

White dates - the room is empty 

Adding a reservation manually has the same dropdown. You can now select the room type/category first, then it will give you the available rooms to choose from.