SS might have determined your SFN effects your ability to perform your prior work, or they might not have. Your attorney can certainly read the adjudicator's notes in your eFolder.

Add wouldn't be correct, regardless, since you listed SFN as an impairment. Perhaps strengthen your medical evidence is more appropriate? You should use the time between now and your ALJ hearing to strengthen both your SFN and BP documentation. Since I've explained what my opinion is about what you need to do, in order to do that, I won't go over it again.