1. This is disabled temporarily on this update. It was called 'hide tab if only one left'. 2. Exit option is on secondary bar. This is by design. There are too many more important buttons but I really don't think it is a good idea to put more on the main bar. I did have plan to make the bar customizable so it is up to the user to do what they want. Just not there yet 3. Bars are linked by now. I might make it behaves like what you have suggested. 4,5,6 are all by default now.