Can I change my name?

[-Huskiediehard-]

So I put in my Boneyard name that I used at scout (huskiediehard) then it said my user name had to be at least 15 characters?? so i added dashes (-) to both saids to make 15. When I got to the new Boneyard I realized people had user names way short of 15. So can u change your name easily? thanks.