I have just a notational practice that I like that I believe is more clear for performers but maybe is not standard practice:
When fermatas happen for instruments in a score where some instruments hold a note and some change over the course of a fermata, I like to break that fermata into multiple fermatas of tied notes. This shows the players exactly what to expect from a conductor. The ‘tie’ function in Dorico, from what I can tell, automatically combines tied notes in a bar even if a fermata is created specific to a beat and duration. How do I prevent ties from automatically combining notes?
For example, given my attached image, I want the top note to be a quarter note tied to another quarter note with the fermata, not a half note fermata, and I want to be able to tie the fermata notes to their next, also without changing the duration of the fermata.