Feature Request: View subitems within a connected column popup

I have a few boards which use a connected column to key back to a unique person who is associated with the items on those boards. Think allocating various types of items to people.

On those boards, clicking on the connected column cell for each item shows a popup with the information from the connected board’s parent item (in my case the data for the human who owns that item). On the Subitems row, it shows the number of subitems, and a little nesting icon, but clicking the box doesn’t do anything. I’d like to be able to see the subitem data within that popup, or alternatively, at least be able to link back to the connected board with the subitems opened.

Right now I have to memorize the title of the connected board’s item, navigate to that board using the link in the popup, and search for the item by name, which is not convenient.

The use case here is an end user referring to an item on a board, and wanting to find out more about the human that owns that item by clicking on the linked column to trigger the popup. Right now they can see the human’s name and basic information, but they can’t see the subitems that contain contact information, so they have to memorize the unique ID and go to the other board to see those subitems.