For our Easter Services we have this problem, (we don't have children's on Christmas Eve), with several additional services. We add additional schedules within F1, and not activities. After the event is over, we leave them in, and when we get to the next year it is already set up.
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Jonathan Malinaric
Children's Ministry Guest Relations
New Life Church, Colorado Springs, Colorado
A Family Ministry Center
www.newlifechurch.org