Hi All, I just found the config.js setting "globalSubscribedCalendars". I understand this feature as an option to add external calendar files to every user who has an account and can login with CalDavZap. I tried this setting here: var globalSubscribedCalendars={hrefLabel: 'Subscribed', calendars: [{displayName: 'Subscribed Calendar', href: 'http://www.schulferien.org/iCal/Ferien/icals/Ferien_Bayern_2015.ics', userAuth: {userName: '', userPassword: ''}, ignoreAlarm: true, color: '#ff0000', typeList: ['vevent','vtodo']}]}; But nothing changed and this calendar does not show up. Did understand this feature wrong? If possible, also explain the delegation/shared calendar feature mentioned in the description of globalSubscribedCalendars. Thanks Konrad