Having a duplicate keybind button would go a long way to help me navigate keybindings

Ideally this is what I would like:

but this would suffice:
I’d like to preserve. the default as I make changes to key bindings.
What I do is unselect the default and make a new one just like it to then edit.
helps me keep track of what I’ve changed.
would be nice to view all duplicates (and maybe option to color code defaults a different color).
Maybe filter by user created a bit like how addons can filter by user.