Do not get excited about the manual anyway. It is the worst feature of Alibre/GMD.
A) Most of the manual is about the same as the help, often the same exact stuff, likely because they pulled it from the manual to put in the help.
B) Quite a bit of that old manual is no longer applicable, and what is described in it is NOT what you see. A large number of good changes have occurred since 2012 Alibre, it really is not very helpful to have that manual, in my opinion, having used help, manual, and asking here.
That said, having the manual is probably better than NOT having it, at least it can answer some questions, possibly better than the help alone, in some cases. It should be on the website somewhere. It is 15 MB, not easy to email if you can't find it there.