This may be more of a notation practice question than a “how do I do this in Dorico?” question. Or it might be both.
Where lyric extenders and hyphens are concerned, what’s the practice when a melisma leads into a new note/syllable? I.e. do we have an extender followed by a hyphen?
For example: “Smiiiiiiiiii - ling!” (If we imagined a melisma on the first syllable, and then a new note for “ling”.)