After creating a group calendar in iCal I am not able to add Events to a Group Calendar in iCal. When I do I get the following message: You can't add events or to do items to a calendar group. Why is it you can't add events to a Group Calendar? My intention is to create a family calendar that can be updated by me and four other Mac users in my family. I want to publish this family calendar to my .mac account. Is it possible to create this calendar so members outside my family cannot view it? Thank you for looking.