Just checking for a little advice.
First, I’d love if this were possible with in-box or Generic Inquiry type solutions.
Barring that I’m questioning how to modify the available columns in this selector box (or any given selector box really).

Ideally I could click the gear icon on the “Select Revision” pop-up. But it doesn’t show any columns that aren’t already shown.
If I have a UDF or another field that isn’t already shown, I’d like to be able to add them by default.
Is there any way to do this in-box?
If not, does this post represent the best path forward, and where is a good place to start in terms of identifying the screen/business logic to modify?