Insert Audio Files up/down arrow shortcut

Is there a way to assign a key command to arrange the order of audio files when you insert multiple files into a montage?

I would like to assign a shortcut for the up & down arrows shown in the attached screen shot but I don’t think it’s possible.

No. But are you aware you can also reorder the list with the mouse (drag and drop)?

Yes, but I find that method with the mouse to be a little slow when working with many files all day. It would be great to highlight a file, and do shift+up or down arrow to move it.