i find the word has a wonderful function-document map, with the function,you can look all the key structure of one ducument. now the Scrivener can look the key structure of the whole project,not one ducument.
expect the development team can expand the ducument map fucnton in the new Scrivener Version ,thanks . 
In Scrivener, the assumption is that you will break individual documents into small enough chunks to show the structure you need in the Binder.
Katherine