I built a viz with 10 containers (one for each month) before discovering that I did not have enough real estate, so I increased the size of the Dashboard. My expectation was that because the containers were floating they would all remain exactly as they were (painstakingly) positioned, and that extra space would just be added to the bottom of the Dashboard. Instead all the containers expanded, almost as if they had been tiled. This means we have to accurately calculate how much real estate we need before beginning to build the Dashboard, not always an easy task.
Idea: Floating object should be anchored to the absolute x/y coordinate position/size and should NOT change when the Dashboard size changes.