I open Notation window.
I set Stuff Roll mode.
I right click on a note and open property dialog.
But where is DELETE button? It always was there for many yars.
Now I have to do many extra actions: change to Editable mode, right-click the note, find in context "delete", turn back to Stuff Roll.
The same is in the Style Editor. I was very upset when I did not know how just to delete a note!
May be I missed something or do not understand?