How do you view the map and see all of the flights?

without focusing onto one city?

You can’t. I asked this a while back as I wanted to see all the aircraft between Bermuda and US coast but I was told that they don’t (and won’t) offer area tracking like Airnav does, presumably because it would become quite a resource hog when viewing busy airspace areas.

Any update on this Mark/Dan? For me it would be something I’d be willing to pay a small sub for if area tracking could be done for oceanic areas to the FAA boundaries.