Open an edition's manuscript in the editor to change its text where it lives. The chapters and pages are listed on the left; the one you choose opens on the right, with its italics, bold, small caps and scene breaks.
Your changes are kept as you type. A few seconds after you stop, the editor keeps them in a working copy of the manuscript. Closing the page loses nothing, and the edition's manuscript stays as it was until you save.
Save a version when you're ready. "Save as a new version" makes your changes the edition's manuscript: the next ebook and print builds use it, and so do translations and store kits. Earlier versions stay.
What you can change: the words of every paragraph, chapter titles and numbers, and the order of the text; you can add and remove paragraphs and scene breaks. Glossaries and the title page stay as they are for now.
Pictures show with their description (read aloud to readers who can't see them), whether they fill a page of their own, and their caption under them: change any of these where the picture is. Drag a picture by its image to move it, or click it and press Delete to take it out. Copy and paste a picture to show it again, or cut and paste it into another chapter. New pictures come in with an upload of the manuscript. A note's mark shows as its number; deleting the mark takes its note out when you save. Lists, quotations and sub-headings: the toolbar's buttons make the paragraphs you're in a bulleted or numbered list, a quotation set off from the text, or a sub-heading inside the chapter; press one again to make them plain paragraphs. In a list, Enter adds an item, Enter on an empty item ends the list, and Tab and Shift+Tab move an item a level in or out (three levels). Ebooks and print set them as lists, quotations and sub-headings, numbered in order. Boxes: the Box button sets the paragraphs you're in apart in a frame, as a sidebar, a tip or a game's message, whatever their shape; press it again to take them out. In a box, Enter adds a paragraph to it, and Enter on an empty one ends the box. Ebooks and print set each box in a thin frame. Verse: the Verse button makes the paragraph you're in a stanza, its lines kept as you break them; lines of a poem typed a paragraph to each, selected together, become one stanza. In a stanza, Enter starts a new line, Enter on an empty last line a new stanza, and Enter in an empty stanza ends the verse. Tables show as parts kept as they are: they come in with an upload of the manuscript, and the editor keeps them where they are.
Arrange the book. Add a chapter or a part: it goes after the chapter or part you're on, or after the last chapter when you're on a page of front matter. Pages of front or back matter (a dedication, an epigraph, a contents page, a foreword, a prologue, an epilogue, acknowledgements, a page about you) go where books usually have them. Drag sections in the list to move them, or use a section's menu to move it, join it to the chapter before or remove it. "Split chapter here" starts a new chapter at the paragraph your cursor is in. A section of the manuscript you removed can be brought back from the list of removed ones until you save a version; one you added and then removed is gone.
Numbers follow. When your chapters are numbered in order ("Chapter 1", "Chapter 2", or I, II, III), adding, moving or removing one numbers them again, the same way. Prologues and epilogues aren't numbered. The contents page follows your chapters' titles and order.
Goals and the focus view. Set the words you're aiming for in all and each day: the editor's footer shows the book's words against the first, and today's against the second: the words you add in the editor that day, so an upload or a version brought back doesn't count as writing. Goals are yours and your team's writers', not your reviewers'. "Focus" hides everything but the page; Escape brings the studio back.
If a new manuscript is uploaded while you have unsaved changes, the editor tells you; your changes to the older manuscript can then be discarded, and you edit the new one.
Translations of the edition see the new version as a change to their source. Bringing the change in keeps the translation of every line that only moved, so rearranging chapters costs little: only the lines that changed, such as renumbered chapter headings and contents entries, are translated again.