public void AddKeyFrame(short time)
{
if (getFrameOnTime(time, false).Time == time)
{
throw new Exception("There is already a keyframe for that time");
}
Frame oldframe = getFrameOnTime(time, false);
Element newelem = DeepClone <Element>(dpow.Elements[oldframe.ElementId]);
Frame newframe = new Frame(dpow.AddElement(newelem), time, this);
List <Frame> temp = new List <Frame>(frames);
temp.Insert(temp.IndexOf(oldframe) + 1, newframe);
frames = temp.ToArray();
}
