Intercept OnPointerEnter and OnPointerExit without subclassing?

Toggle is driving me crazy. I can't even figure out how you're supposed to enable so that only one toggle option in a toggle group can be active at the same time (that shouldn't require any scripting, right)!

But more importantly, I find the Toggle Transition very limited and I want to change it (I don't want a text box, I just want basically the ColorTint to stay.

So one way of doing that, I figure it to capture the OnPointerExit and prevent it from changing the color back to normal.

Is there a way to do that without subclassing Toggle?