Not as such, but it’s easy to hide the accidentals in the properties panel and add that one accidental as text above the note… see this thread for how to do it: Double-tempo - Dorico - Steinberg Forums but use this link to get to accidentals rather than the metronome marks: https://w3c.github.io/smufl/gitbook/tables/standard-accidentals-12-edo.html