I’m guessing what it means is: in the HUD Layout screen, there’s a dialog box with a dropdown list of HUD elements, and they’ve just made the dropdown bigger when you click on it.
That’s my assumption as well. That dropdown is always really annoying to scroll, so this is a welcome change. I often place my job gauge behind the crossbar hitbox, where it can’t be selected otherwise with a mouse cursor, so I have to use the dropdown menu surprisingly often, especially since the client will forget job gauge layouts past a certain number of recently played jobs.