This is just an idea to improve the usability.

I would like to suggest a Document Map view.  Perhaps it would be added to 
the navigator (which I admire an enormous amount) or to the Style selector.

The idea would be to highlight areas of the document in a particular style, 
or font, or language, or outline numbering level.  

Imagine zooming out, and then click-holding on each style in turn to see 
where it occurs.  The navigator can already jump to a bookmark - my map 
mode would merely show you where all the bookmarks, or just one, were on a 
plan view.

In the spreadsheet it could show dependencies between cells by formula, or 
all the cells with a date or currency format, for example.

It would be less useful in the drawing module, although it could have 
application in the presentation one.

A futher thought - the use of XML (and to some extent rtf) would allow 
user-defined attributes to be scattered about and then picked up in map 
mode.  "show me all the bits written by Dr Killmore"  "Which financial 
results are provisional and which published".

Many years ago I knew a man who wrote the fortran code as indented 
paragraphs in the design documentation, then used a bit of runoff code to 
separate the two and run the compiler. Imagine a .sxw file like that, and a 
print command that selected certain attributes (print just the "source 
code" blocks).

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The purpose of this proposal is to differentiate the product from MS 
products, rather than to continue to mimic them, to add  usability and 
convenience - and get the product talked about by reviewers!  I see this as 
a 2D analogue of some ideas-processor or outlining products from the 1980s, 
before we all went GUI mad.