Here’s the example:
You’re configuring a Drill Down on a report and you want to add and remove some fields. Your object has lookups and your lookups have lookups. Rather than searching for each field, selecting/unselecting, deleting the search, searching for a new one, you just want to traverse to a certain part, do your selections and move on.
Today, you can’t really efficiently do that unless you already know where exactly the fields were selected from. This is extra cumbersome in this particular case, as the drill down doesn’t show the original path:

So if you renamed it, it just says “Name” or you could get it from multiple areas you’re SOL.
Idea:
Let’s say that you have fields selected under the Company and Scorecard lookups below:

Highlight those in some way to indicate to the admin a field has been selected at that lookup or a deeper traverse.
If I then expand the company lookup, I might see two scorecard objects here, but because the bottom one is highlighted, I know that’s where my selected field(s) are from:

Obviously this won’t solve every issue, but just at a glance being able to see that there’s a lookup traverse with one or more fields selected, leveraged, etc., would be helpful.
Adding the pathway to the drill down columns would be useful, or having a way to jump right to it would also be great, but I think the visual cue would be helpful if applied throughout the product.