maybe i am misguided, but i must say that this "feature" smells like bloat to me.
if i understand i well, it is basically used to have shortcuts in the docs and more easily generate latexfeatures.lyx 1. to document the shortcuts it would be enough to write "see Tools->Preferences->Shortcuts". time would be better spend implementing this. 2. as to latexfeatures.lyx, i just discovered it and i think this is a duplication of something that a tex distro provides (i can fire up miktex's package manager to get this info for example). so i don't really see the point of it and would even go as far as suggesting to remove this altogether. my 3c of course...