It might be helpful if there was a feature that enabled the map window to set its size automatically to the smallest size at which the whole of the map at the current zoom level is visible without having to be scrolled (the equivalent to CTRL+E in the GIMP). Perhaps the little down arrow used to reset the size could be used for this purpose, toggling between the smallest available size and the smallest fit size?
Fully support this request.
Since this often does not fit the screen size, it is mostly impossible, imho.
Perhaps it could be set to a maximum of the optimum size or a certain fraction of the current screen size?