Individual staff size change

I’m working on my new orchestral score and added extra staff below instrument and tried to reduce size but changing my linked instrument staff size as well. How can I change the added extra staff size only?

Do you want to add an ossia staff, e.g. to write out exactly which notes to play for a trill or to offer an alternative version of a part? If so, see here.

Thank you, that would work but is there any ways to make that ossia staff smaller?


Does one of these do the trick?