Trigger a Popup via Non-Bricks Element

Looking to trigger a popup from a Max Mega Menu nav item (still waiting on Bricks to fix accessibility issues with the navigation, so using that instead) - but can’t quite manage to figure out how it works, or if it’s possible.

With Elementor, for example, you can set up popups to trigger on click of a specific class, which in this case would be, say, .enquire-popup, however even though that’s the class that holds the interaction for internal bricks elements like on-page buttons, it does nothing on this item.

Any ideas would be greatly appreciated