If I wanted to bind a specific blednshape (like eyes closing and other things) to a radial menu button instead of binding it to activate via hand gesture...how the fuck would I go about doing that?

The only thing I've ever known how to make a toggle button out of are objects that i can show/hide on my avatar, but a shapekey/blendshape is just something that's always on my avatar, not really an object so idk how I'd do this