just open up your commands.htm file in word and add hyperlinks to your extra modules help files.
That's what i have done.
even the standalone help packages can be opened from a link within the dbpro help window
(but will still open standalone, its just easier than finding them on your hard drive)
I have every help file for every plugin i use accessible from my commands page.
they are all either somewhere in the dbpro help folder or the plugins example folder in the projects directory.
Sometimes I like to use words out of contents