I opened up C5 and see what you're talking about. Sorry for the confusion - I always use the other key board shortcuts for camera moves and didn't even notice that the right click options had been removed. So, it looks like your left hand may be getting a little more exercise than before. Incidently, those right-click camera moves can also be temporarily involked with combos like Control-Alt (PC) for zoom, Alt for rotate around selection etc.