Is it possible to add a column to a List of People/Groups that is basically a 'Notes' column which isn't attached to their Active Directory data (and is editable)?
migrated from stackoverflow.com Nov 10 '11 at 8:27
Not sure if I understand you correctly, buy here is my take
Create a new Custom List with 2 columns:
if you actually want to modify the TYPE "Person/Group" to give you a Notes option out of the display options, you would need to still create the list above, create a custom field in visual studio, inherit the people/group field and add the Note coming from that list.