Add any object, select a face and press E to extrude. Now try to rotate the view while extruding. Normally middle mouse does this but while extruding middle mouse does not work. How do I use the mouse to rotate the view WHILE using extrude (or anything else).
This functionality does not exist in Blender 2.80. You can do that in Mechanical Blender.
You could set up multiple views in different windows before you start the editing process. This would allow you to see every angle whilst (a little Australian there for Andrew Price...) editing.