It really depends on how properly you have structured the document. If, as Charles mentions, you fully use styles, then you can take advantage of that.

It also depends on what is your actual purpose. Is it navigational? Is this to be able to get to various places? Bookmarks and other things would help with this. You could also use a userform with things listed on it, and then selecting something would either hide them (as requested) or perhaps jump to that location.

What do you actually need?