We were interested in tracking a user's last login time, and I see the attribute that I can add in the user's profile.  But we have 460 users so adding that in manually would be tedious.  I saw this article online: https://fedorahosted.org/389/ticket/371 and wondered if all we had to do was add what it mentions to our dse.ldif file and restart the server.  

Would that work?  If not, would scripting the addition of that attribute be possible?  Or is there another way?