The protected categories

To create or change the password of a protected categorie, clic on Tools, and after passCat.

After, clic on the link of a categorie, check and fill its passCat fields.

Champs

check to protect this categorie with a password
All is in the title :D. If it's check and the fiels "Password is fill, this categorie will be protected with this password. Unchecked, this categorie will be public.
Password
Password of this categorie. If it's fill, thie fiels define a password to protect this catégorie.