Notes and code(s) fields in lists used in LBFs

I am running OEMR Version Number: v5.0.1 (3). While I am new to OEMR, I have been notified that the notes and code(s) fields in lists (used in LBFs) is new. Out of curiosity, it is documented anywhere how these fields are used? Any help would be appreciated.

https://www.open-emr.org/wiki/index.php/LBV_Forms#Options is a little out of date thanks to @sunsetsystems improvements, Added layout edit options J, K, M and m. by sunsetsystems · Pull Request #2153 · openemr/openemr · GitHub