thank you very much for that speedy answer - that was the solution! It’s just a bit complicated to get access to these common symbols. But: I’m new with Dorico (using for 20 years Sibelius) - and step by step after having copied some of my solo-pieces for trombone, I understand the concept and I am very impressed: it’s a fantastic software - I hope very much that the suggestions from the contemporary music colleagues (staff styles e.g.) will be implemented soon, the microtonal possibilities are just great, never seen something like it before.
Thank you very much, best greetings