Differentiate between transposition of different insruments

Hello network.
I have come across a problem a few times now and it might already have been solved in the new version of Dorico, but I am currently stuck in version 3,5. So please have patience with me.
When migrating my arrangements from Sibelius to Dorico via musicxml, I have a little trouble with the staff labels. For instance: when I want to reset staff labels to the default of dorico, the program does not differentiate between different instrument from the same instrument group.
In one arrangement I have an Eb Clarinet and Bb Clarinet 1-2. When I reset these to the default of Dorico, suddenly the Eb Clarinet is just named clarinet 1 and the Bb Clarinet will be named clarinet 2 and 3. I have similar problems when renaming horns in F and Eb.
Please help. Regards Carsten Coach

Check the options on the Staves and Systems page of Layout Options regarding the display of transpositions in staff labels. You can also go to the Edit Instrument Name dialog for each instrument held by the players in your project and set the option at the bottom of that dialog for whether the transposition should always be shown, never be shown, or should follow the value of the option specified in Layout Options.