Do you mean like Microsoft had with many of its older Office products? Pres F1 and then the help would come up beside the office application. They had a customized help but really it could have been done with html and links, wel they did go that way then they have changd again. But even to add a search would be helpful with indexed keywords.
Yes that would do the trick. This should be a very easy way to finding answers rather than searching the forum/wiki.