Need Help with Figma Button Hover and Pressed States?

Hi everyone! I'm strugling with the hover status, for buttons. I now know how to perfectly custom my style guide on figma, I can't find how to add variables like hoverring and pressed status for the already existing buttons. When I tried to create new variables, I lost the existing ones. So I have two choices : using the style guide without creating hover state, or creating my buttons from scratch (thats is pretty stupid given the cool work you guys have done on this amazing relume library for figma). I guess there is an obvious solution but I don't get it, this is driving me crazy 😅