|
You're quite free to add 'linear= "no"' to spine entries in the opf file. Sigil won't complain. There is no button that will add it for you however; if that's what you're looking for. Nor will Sigil "skip" the presentation of said material in Book View/Preview. That behavior wouldn't make sense in an editor. Especially one that has no sequential "paging" ability.
|