[turba] Add global column

[Rodrigo Monteiro]

I have an localsql and localldap configured on turba (Horde Groupware
Webmail Edition 1.0.2).
What I want to do is to add the email column in the localldap for all
the users (global horde/turba configuration). How can I do that?
What I'm doing now (in a testing enviroment) is to add this preference
for all the users in the horde_prefs table
('user','turba','columns','localsql email\r\nlocalldap email'), but
this is not an good way to do it, right?

Regards,

Rodrigo.