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Is it possible to change the default behaviour of wiki calendars to be hidden instead of visible. I have a wiki with a calendar with quite may calendars in it. The problem is that it gets very clotted when all event in all of them are shown. You can untick the box next to the calendar to hide it, but the problem is that this does not stay after a refresh or logout when viewing via a webbrowser. If I use the iCal client, a hidden calendar stays hidden (in iCal, not on web)

What I would like to do is change so "hidden" or "unchecked" is the default on the server. 

On a client using iCal the setting for Checked or Unchecked is stored in : 

user/Library/Calendars/C9BE5C0A-6EED-48D7-97F8-6DB02EA6A55A.calendar/Info.plist (your numbers will be different ) And the specific command in info.plist is:

<key>Checked</key>

<integer>1</integer> 

As an alternative to change the default behaviour on the server for all calendars, changing this setting for each of the calendars would be possible if I only could find out how!?