Detect GraphInteractionPalette Click

Hello,

I'm wondering if there is a way to detect when a GraphInteractionPalette button is clicked. I tried attaching a MouseDown/MouseUp event handler to the GraphInteractionPalette but that did not fire, I'm guessing because I would need to add the event handler to the actual button inside the palette.

Ideally I could detect which button on the palette was clicked, e.g. ZoomToFit.

Thanks in advance.