Administration:
# Only used internally, omitted: FrameworksLoaded, Version
    Interface options:
        -
            - Use
            - pref: KohaAdminEmailAddress
              class: email
            - "as the email address for the administrator of Koha. (This is the default From: address for emails unless there is one for the particular library, and is referred to when an internal error occurs.)"
        -
            - Show
            - pref: DebugLevel
              default: 0
              choices:
                  0: "no"
                  1: some
                  2: lots of
            - debugging information in the browser when an internal error occurs.
        -
            - pref: noItemTypeImages
              default: 0
              choices:
                  yes: "Don't show"
                  no: Show
            - itemtype icons in the catalog.
        -
            - Separate columns in an exported report file with
            - pref: delimiter
              default: ","
              choices:
                  ';': semicolons
                  tabulation: tabs
                  ',': commas
                  '/': slashes
                  '\': backslashes
                  '#': "#'s"
            - by default.
        -
            - pref: virtualshelves
              choices:
                  yes: Allow
                  no: "Don't allow"
            - staff and patrons to create and view saved lists of books.
    Login options:
        -
            - pref: insecure
              default: 0
              choices:
                  yes: Allow
                  no: "Don't allow"
            - staff to access the staff client without logging in. Enabling this is dangerous, and should not be done in production environments.
        -
            - Automatically log out users after
            - pref: timeout
              class: integer
            - seconds of inactivity. Adding d will specify it in days, e.g. 1d is timeout of one day.
        -
            - pref: AutoLocation
              default: 0
              choices:
                  yes: Require
                  no: "Don't require"
            - staff to log in from a computer in the IP address range <a href="/cgi-bin/koha/admin/branches.pl">specified by their library</a> (if any).
        # PostgreSQL is supported by CGI::Session but not by Koha.
        -
            - Store login session information
            - pref: SessionStorage
              default: mysql
              choices:
                  mysql: in the MySQL database.
                  Pg: in the PostgreSQL database (not supported).
                  tmp: as temporary files.
                  memcached: in a memcached server.
        -
            - pref: IndependantBranches
              default: 0
              choices:
                  yes: Prevent
                  no: "Don't prevent"
            - staff (but not superlibrarians) from modifying objects (holds, items, patrons, etc.) belonging to other libraries.
    CAS Authentication:
        -
            - pref: casAuthentication
              default: 0
              choices:
                  yes: Use
                  no: "Don't use"
            - CAS for login authentication.
        -
            - pref: casLogout
              default: 0
              choices:
                  yes: Logout
                  no: "Don't Logout"
            - of CAS when logging out of Koha.
        -
            - The CAS Authentication Server can be found at
            - pref: casServerUrl
        -
            - Use
            - pref: AllowPkiAuth
              default: None
              choices:
                  None: "no"
                  Common Name: the Common Name
                  emailAddress: the emailAddress
            - field for SSL client certificate authentication
    Search Engine:
        -
            - pref: SearchEngine
              default: Zebra
              choices:
                Solr: Solr
                Zebra: Zebra
            - is the search engine used.