EDIT: This post is now outdated by the features in Dorico 3.5.
_Here is a fix for anyone who wants to have a G ottava clef that performs the 8vb transposition.
- Quit Dorico.
- Download the attached .doricolib file and unzip it.
- Save this to the “DefaultLibraryAdditions” folder.
On Mac, this is in your root level Library: /Library/Application Support/Steinberg/Dorico 2/DefaultLibraryAdditions/
On Windows (please confirm): %PROGRAMDATA%\Steinberg\Dorico 2\DefaultLibraryAdditions
If the folder is not there, you will need to create it. (If you have NotePerformer, you should have the folder, as NP uses .doricolib file to load its expression maps.)
When you restart Dorico, you will then find a clef named “Treble Clef(8vb)” in the Archaic Clefs section. Instead of using the Tenor “instrument”, you can use other Singer instruments, such as Voice, Baritone, etc, which can now use Treble G, C clefs, F clef and the Ottava G clef, all at the correct pitch!
Thanks to Craig F for creating the XML. This works well on my setup, but obviously, if you are having problems, do remember to remove it as part of any troubleshooting._