[Users] reply-template question (again)

[Michael]

In Prefs -> Writing -> Reply, i have 

?ABf{%ABf,}!ABf{%F,}
%X
%q

The problem is, if it si a friend, i wanted to reply with first name only. As a rough indicator, friends usually have nickname field in addressbook, or, at least, separate first / last names. With business contacts, i usually don't bother to edit these fields at all.

Thus the reply would look like

Hello Peter # for a friend

and

Dear Mr. President # for someone who's name is like "Homer LVII. President")

So my question is, can i have addressbook completion 'From' but with the first name, or (better) the nickname, if exists, and with last name otherwise ?