Thank you your answer gave me the way I have to search
It’s, obviously, what I tried at first but what i misundersood is that the score take the lengh of the entire trak and not only the selected contener.
I resolved the problem by creating a track for each score I wish.
Now my “new” problem is to create a chord that is not in Cubase (as far as I know). I look to create a C(6b) but I don’t know how to do that. I can have a C13b but I don’t like thit. For me it’s not the same thing. Is there a learning module in cubase to show him the chords he don’t know?
(And I still don’t know how to hide these awful bars mesures. I said that I can live with but, eventually, I’m not so shure) 