Multi-Container Panel Chop/Dat

I have a UI that is comprised of several containers, all within one master container.

Is there a way to monitor the master container, and evaluate the path of any sub-container that the mouse is hovering over?

I can make a solution for this using a panel chop per container, but it would be lovely to consolidate that into a single operator - behaviour similar to renderpick for 3D scenes which can return the path information of any 3D object in the scene that your mouse hovers over.