is possible when an user creat his wishlist,to assign a password (access code) so only his friends can see the list?

and also how name for the list owner's list can to decide a specific name and not his user name; this is some better also for example for not show own user name (used for login).

Example of use:
If the list is only pubblic and the site have many wishlists or/and there are user with similar name then the friends can make errors when they choiche the wishlist.
But if is required a code for access then will be open only the specific wishlist.