When everything has it's place, it's easier to keep things tidy. Things without a real home take more brain power then we realize.

We used to have tear-off hotbars, not sure why they disappeared. This is from Delphi, notice the ridge on the left of the bar. Then again it was too clunky for your suggested use case I'm afraid.

It does, but only for pages, not for tags if I remember correctly. Though I'm waiting for page merges to happen since I often have duplicate topics that mean the same thing with my scatterbrain way of working.