In Profile Settings, you can configure whether users can edit their own profile and read other user’s profile in Friend List or not.

Enable profile editing

If checked this option, users are allowed to edit their own profile in Friend List->settings->Profile. Otherwise this part will be hidden.

Note: Only after you integrate a user database with 123 Web Messenger, can you set the registration url.

Show profile in popup menu

If you checked this option, there will be a profile quick link in the menu which popup when a username is chosen. Otherwise it won’t be there.
As shown below.