Changing Chord Symbol Component for all chords

Hi,

I would like to make this 6/9 slightly bigger.
If I go into the Chord Symbols Appearance dialog, I have to enter a specific chord symbol (like Eb6/9) and then I can go into the Chord Symbol Component Dialog and make every component bigger. But this then only goes for the Eb6/9 and not all the other 6/9 chords.

I am sure there is an easier way that I am simply missing.

Thanks for your help.

Can you upload your project, please. An empty one is fine.