To view the diary by room you simply click on Room View beside the date.
This then brings up 'All Rooms' beside the diary location which is highlighted in the image below. If you click on All Rooms it allows you to select/deselect the rooms you want to see in the diary. Once you click Apply the diary is now displayed in room view as you can see in the following image.
Please note that Rooms is an additional module which you would have to speak to our sales team about purchasing.