would be nice if you could have multiple tabs open in web browser that all have the editor open.
or have the option to open ui elements in seperate tabs
move the camera in on and it updaes the others, select a mesh and it selects it in the others.
this way you could customise the editor ui by your browser windows.
useful for people with duel monitors, view and hierarchy on one monitor and asset library in the other.
i know it would help me alot, 2 small screens XD