Button to navigate variants in another component

I’m sure this is simple, but I haven’t found the right forum topic that exists. I have a button in one component and I want to click to navigate variants in a different component.

It’s basically a component that shows five different variant states of window shades being opened and closed (Open, 25%, 50%, 75%, 100%). I have a controller with buttons and I want the arrow buttons to navigate the different variants in a different component.