It would be nice to be able to have multiple displays to act as one display. I see that you can accomplish this with the Windows client with creating the layout to the size of the displays and setting Windows to see the monitors as one. But if it could be done with the Android client that would be awesome but they would have to be in sync some how.
Maybe an idea for multi layout set is when creating a layout you could have an option for number of displays so if you pick 2 displays it creates 2 layout for display 1 and 2 and so on. Just a thought.