private void Actions_Add(MissionStatement item)
        {
            DependencyAction da = DependencyAction.NewFromStatement(item);

            //Remove duplicate if present
            for (int i = Actions.Count - 1; i >= 0; i--)
            {
                if (Actions[i].IsDuplicate(da))
                {
                    Actions.RemoveAt(i);
                }
            }

            Actions.Add(da);
        }