Hi, Markov:
Thank you for suggesting that approach. I’m able to catch clicks on the column, but it doesn’t appear possible to distinguish a click on the button from unrelated clicks on the column. This is important because we want to also have allowColumnHeaderSelection enabled so the column is selected on click.
I would need the composed path or target, but these are not useful from where columnClicked is dispatched. What is the way forward from here?

Cheers,
Patrick