This is the default profile that was created in the site.
Have you actually tried this, Ted? The manual states this:
"77Alteration Mode—This event allows you to specify how the notes recorded for a style track will be used during Arranger playback. See below for details.
This parameter is not...
You just need to create an "Alteration Mode" message in the bass track of the style. This allows you to specify a range for the instrument. See p.48 of the online manual for details. Hope this helps! -Ted