You should indeed use ossias for this rather than extra staves. You can get Dorico to show the clef at the point at which the ossia appears, but if the wrong clef is appearing, try temporarily showing the ossia at the start of the flow and set the appropriate clef there, then delete the signpost that causes the ossia to show: the clef will still be in force when the ossia is reshown.
I started work on it … but now Daniel has answered … but I am posting what I got up to. Cello ossia.dorico.zip (521.5 KB)
I used Engrave to move the ossia upwards, increased the stem length on the ossia notes were you want them joining and played around with moving the noteheads a little in Engrave.
(created in Dorico v4.1)
Thanks to both of you, I have not responded so far because I have fallen ill and have not been able to test it, but as soon as I recover I will comment. Thanks again and best regards
I´m trying to do what you say, but it doesn´t work: I create one ossia at the start of the flow and there I can see the right clef; then I delete the signpost (“+1 pentagrama”) of that ossia, but the ossia wich I want to show the “f” clef doesn´t show the “f” clef. Maybe is because I´m using Dorico 4.0.31 in this computer and not 4.1?
I can’t help with details as I’m going out of town atm, but I have done some testing on Kodály’s op. 8 in the past. I have a few bars here that I can share with you. Maybe they would be useful to you if you play around with them.