I have not seen this mentioned as available.
I just found out that Shimano has a lot of tech manuals and information available in their Tech Tips area of their web site. Lots of info on 3. 7 and 8 speed gear hubs as well as sections on Road and MTB components as well as a general section which includes interchangeability information, torque specifications etc.
Interesting as when I phoned Shimano tech support some time back they did not even mention the Tech Tips area as having manuals.
BTW the Shimano America Tech Tips area has a lot more documents available than the English language section of the Shimano Europe site. I have not checked the German or other foreign language sections of the European site so have no idea what may lurk in those areas.