setting special ranks

I'm trying to set a special rank for my mods and I've already made a rank "moderators" but they all still have their member ranks. How do I get "MOD" under their name like I have "admin" under mine?

To make ranks:Administration Panel -> Users and Groups -> Rank Administration

To give certain users ranks: Administration Panel -> Users and Groups -> Search Users -> Click on a user's name and scroll all the way down. There will be a drop down menu called Rank Title:

Thanks!

This ones solved