About Scrivener writing software
From the site:
Scrivener is a powerful content-generation tool for writers that allows you to concentrate on composing and structuring long and difficult documents. While it gives you complete control of the formatting, its focus is on helping you get to the end of that awkward first draft.
Scrivener puts everything you need for structuring, writing and editing long documents at your fingertips. On the left of the window, the “binder” allows you to navigate between the different parts of your manuscript, your notes, and research materials, with ease. Break your text into pieces as small or large as you want—so you can forget wrestling with one long document. Restructuring your draft is as simple as drag and drop. Select a single document to edit a section of your manuscript in isolation, or use “Scrivenings” mode to work on multiple sections as though they were one: Scrivener makes it easy to switch between focusing on the details and stepping back to get a wider view of your composition.