I am building a site where I want users to be able to login to have to view some pages. I have created the pages, and then restricted the access to just logged in users.

As I would like to make it as simple as possible for peeps to login, rather then use an email I would like to have a generic username.

Is is possible to customise the login form label? I have had a search through the forum and a look through the code in the CMS but I cant work out the best way to do it. Can anyone point me in the right direction?