Center staff label number

Hi! Is there a way to center the number 1 vertically for the 3rd bracket here?

if you don’t mind my asking, what is the small staff above Clarinet 1 ?

An Ossia for cl.1

In this case, it is perhaps normal for the number not to be centred, as Dorico does not consider this ossia to be a separate part.

You cannot centre the number here, I’m afraid.

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Ok, thanks!

I would find it better centered in this case