Suggestion: Friend's list, add comments

Hello,

I don't know if this was discussed before, I tried to search but couldn't find anything using my searching poor skills, but

the previous MMO (FFXI) we were able to add little comments next to the names in the friend's list, at some point it gets hard to remember everyone, where we met ..etc

Currently, there is assign groups, but I don't think its enough. for example
First name / Last Name "Boza awaken fragment friend"

This way, I have more clue who is that person, and specially if I took a break for a while , or the person took a break, I will have more idea the next time I see that person online.