Most manuscripts are drafted in a text box that looks nothing like the book they will become, and the difference shows up late, usually when the first proof arrives and a chapter that read well on screen turns out to be four pages of unbroken paragraph. Draftline's writing surface is a floating page set in Merriweather, with indented paragraphs, a ruled chapter heading, and the ⁂ scene break, so that what you see while drafting is close to what a reader will hold.
The docking clamps released with a sound like a held breath let go. Mara counted the seconds the way her first captain had taught her — not to the jump, but to the moment the jump could no longer be called off.
Four. Three.
On the Harmony, the string quartet had finally stopped playing.
The chrome around the page stays small so the text carries the screen. You set the font, size, and line height once in Settings, and the page keeps the conventions the printed book will use, which means the scene break you type is the same ⁂ that appears in the exported EPUB and the chapter heading is a real heading that the exporter recognizes rather than a line you made bold.
Bold, italics, underline, superscript and subscript, lists, and text alignment cover what prose needs.
A book is not one long file. The manuscript panel keeps front matter, body, and back matter as three color-coded sections, and you add a prologue, a dedication, or an appendix as a typed item in the right one rather than as a chapter with a misleading name. You drag chapters to reorder them, give any chapter a subtitle, and read the running word count at the bottom of the list.