LiveUser login_handle aliasing

Hi, I would like to offer my users to be able to use aliases for their login handle, e.g. email adress or customer id. So.. is there a chance for a feature request..? ;-) Or should I use the 'auth_user_id login feature' and implement my own login method? Anyways, it would also be great to have a separate password verification. Hm.. I guess I should subclass/modify the auth container (readUserData()). This would be a nice place to add handle aliasing, e.g. SQL this way: "...WHERE (handle=$handle OR $alias1=$handle ...) AND passwd=$passwd" It would be very useful to have a reliable handle aliasing. One could simple provide this feature by a simple config option in the storage container configuration, e.g. this way: 'login_handle_alias' = 'email,auth_user_id' Regards, Matthias