I have a puzzle: When editing or moving objects beyond the software interface, the scroll wheel key cannot zoom the window. Other 3D software can use the scroll wheel to zoom the window while editing the object.
That is not possible in Blender as far as I know. It would be very useful, though.
I think Blender to improve this experience will not be too difficult, most of the software support editing objects beyond the viewport to provide the mouse wheel key zoom viewport operation, like Sketchup in this aspect of the experience is very good.