I'm not sure what you're asking. The NAV is a required part of EPUB3, but you're free to edit it and style it anyway you want. You can also move the nav anywhere you want in the manifest by dragging it up or down in the Book Browser. What, exactly, about the NAV creation/editing process are you trying to "automate"?
Also: as with the css for an autogenerated html toc, I believe you can create your own NAV style template to customize the styling.
Last edited by DiapDealer; 10-29-2016 at 09:37 PM.
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