But you can apply a style to large blocks of text, and if you have "Next Style" defined, you can apply the first and next styles in one operation.
By existing styles, do you mean words or sentences within a paragraph that are set to something like bold, italic or a color? If that's the case, you can use find and replace to apply Character styles to all those instances. Once you have done that, you can apply a Paragraph style to the whole thing, and everything that has a Character Style will have the Character Style attributes retained.
What do you mean by "unstyled text"? It must have some definition, anyway.
Like others, [No Paragraph Style] and [Basic paragraph] are searchable, too.
boomshakalaka! Thanks! Im familiar with this panel but didnt see how to specify 'Character Style: [No Character Style]'.