I know this has been talked about before, but I wasn’t able to find a clear solution how to create them in Dorico.
Following many harpists’ advice, I didn’t add all the pedal markings and only use them at the start of the piece and with glissandi, leaving it up to the harpist to write in their own pedal markings which they prefer, although I made sure everything is playable. They told me it’s very personal when they switch pedals, even taking resonation of the harp into consideration, and when they get a part, the first thing they do is cross out the composer’s pedal markings…
I decided to go for screenshot them in Sibelius and insert them as graphic objects in Dorico, which I did after having finished the layout so they would be at the correct spot. After all, they don’t connect to the staff. Problem still is that I cannot get them look very crispy and clear in the exported PDF even though the fill aspect of the frame is set to Aspect Fit.
I also considered to use letter notation instead, using Shift-X, but I wasn’t able to create the accidentals. Any advice how to create the diagrams or the letter notation that includes the accidentals?