I used to have a shortcut (shift+z) that would zoom to fit. for example if you move and copy many objects in a row (say 10 or so) then you could just press shift+zoom and sketchup for schools would auto zoom to fit the now much larger workspace. This does not seem to work anymore. That means i have to choos zoom (press Z) and the use the mouse to zoom out. Am I missing somthing og have the function disappered?