private void RemoveUnneededObjectsFromProperty(ICmObject[] oldObjs, ICmObject[] objsChosen)
		{
			if (oldObjs.Length == 0)
				return;
			var i = 0;
			foreach (var oldObj in oldObjs)
			{
				if (!objsChosen.Contains(oldObj))
				{
					RemoveFromPropertyAt(i, oldObj);
					i--;
				}
				i++;
			}
		}