The Scrivener Binder lets you organize your projects in texts and folders, and you can use these texts for chapters, sections, or even scenes. As your project progress, you may want to combine certain texts, or split others, as you refine your project and its direction.
With Scrivener, you can do this is the Binder: you can merge two or more texts into a new text, or spit a text into two or more texts. You can also import texts in different formats, and have Scrivener automatically split them to create a hierarchy in the Binder.
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To learn how to use Scrivener for Mac, Windows, and iOS, check out my book Take Control of Scrivener 3.