I have searched for something like this, and only found one game that had such, but it didn't use BABS and was an encrypted file.
Roughly I would love a scene that could open and let you toggle between two or more control set ups with an image display of the controls to explain them. My game uses a control set up that's easy for me to use that is different from the default controls others may be more use to. So to be able to select the 'Default' settings that comes with the script, than be able to change from that to other set ups would be a nice addition rather than force people to get use to another new set up.