For the sake of argument...stop me now if I'm taking this too far but..
You could write a batch file to automatically generate a bind file called say target.txt in your STO folder and also copy the "bind_load_file target.txt" command to the clipboard. It would be quite straight forward I think. I reckon even I could do it.
That way all you would need to do is launch the batch file, enter the names, hit enter, then ctrl+v in STO to apply the bind. That way you could set up binds as quick as you can type 5 names.