How to keep my project keyless, but in 24-EDO tonality?

Hello!
Want to implement quarter tones into my work for sax, but can’t set the tonality to 24-edo since I’ve started. Dorico seemingly MUST have a key signature in the 24-EDO tonality system in order to notate using quartertonal accidentals, but I don’t want that key signature in the score since there is a piano accompaniment (tacet in this particular section). Is it possible to reset the tonality system for the whole project without adding in a key signature? Or is there a way to hide that key signature if I MUST put it in? Is there maybe a way to add in a local key signature for JUST the saxophone?
Anything helps! Thanks!

Select the first note/rest for the Sax.
Select 24-EDO from the Tonality drop down list.
<Shift-K>Atonal<alt><enter>

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Amazing! Thank you!

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