You can automatically calculate suitable harp pedal diagrams based on the notes you have already input, either from a single point onwards or within a selected region.
If you do not input any harp pedaling, Dorico Pro assumes all harp pedals are in their natural setting, as they would be for C major. Any pitches that do not fit with the current harp pedaling, excluding the two lowest harp strings, appear red when colors for notes out of range are shown.
Procedure
Result
A harp pedal diagram is input at the start of your selection. Depending on your per-layout settings, it is either displayed as a diagram, using note names, or not shown and instead indicated by a signpost.