Change user name

I would like to change my user from "Pato173" to "patopedroraimundo" if it is to long could be only "pedroraimundo"

Thank you

You can do it under 'Edit Profile'. It's really very simple.

@The Cinephile
Actually in Edit Profile you can only change your Display Name, not your User Name (that is, the name before ".listal.com" in your profile URL address).