In the Level Display Dialog Target Tree pane, reference models are sorted by the slot number. There doesn't appear to be any way to change the order that these are displayed. It would be better if they were sorted by name or at least allow the user to select how they are sorted. The slot number is ambiguous but the file name is generally known.
Please make this happen. Why does it use the slot number? If there was an easy way to change the slot number that would be a good thing as well.
Self attachments at the top (3D model attached to 2D) then alphabetical order by file name.