public void AddObject(VisualObject obj)
        {
            var frame = pnKeyFrameContainer.Controls[CurrentSelectedFrame] as conKeyFrame;

            if (frame != null)
            {
                if (string.IsNullOrEmpty(obj.Name))
                {
                    obj.Name = obj.GetType().ToString();
                }

                frame.VisualObjects.Add(obj);
            }
        }