Let's face it, MS Word is not optimized for writing large documents because it tries to fit all kinds of users' needs. Writing Outliner is designed to fill the gap, on top of MS Word's power. The idea is:
Split a large document and write in pieces, when done, merge them.
All other professional publishing software use a similar approach to deal with large documents. To serve this idea, Writing Outliner provides a set of tools that are seamlessly integrated into MS Word.

