How do I retain the same Text Style (typography, line-high, letter-spacing) at the same time that I enhance it with an uppercase attribute without creating a Text Style?

Currently, brokes the -Text Styles- and forces me to create other -Text Styles- with the uppercase attribute. Can it be a better solution than creating a new text style?

(Context: The product I’m designing has many styles, and adding new styles with this new attribute will make it more complex to admin, etc…)

Thanks,

Fab.