How to Remove CCK flagged Event Nodes from Calendar View

I have a site that uses events to list upcoming events. We show them on the calendar view (www.mysite.com/event) the problem is that until we have all of the information about the event we do not want to have the event listed in the calendar.

To solve the problem we have created a Yes/No CCK text field on the node type that asks "Do you want this event to show in the Event Calendar?". We then use this CCK field as a filter for all of the page and block views of the node type.

The problem is that the Calendar just shows all events and we cannot figure out how to use this CCK field to filter the calendar.

My question is: How can I use this CCK field to filter the events in the calendar view? I cannot see how to edit the calendar view at all.

We do not want to use the published node / unpublished node option because that is a higher level funtion and we have lower level people entering these events. It also is not entirely clear for our people who are entering events - "publish" is not a term they are used to when it comes to content.

All and any help would be greatly appreciated.