CLOSURES 閉合#Add 添加Add a new closure增加一個新閉合。Remove 移除Remove a pre-defined closure刪除一個預定義的閉合。Add#To 增加到Add new loop to a pre-defined closure把新環路增加到預定義的閉合中。Remove#From 從刪除Remove loop(s) from a pre-defined closure從預定義的閉合中刪除環路。Redefine#Type 重定義類型Redefine closure type重定義閉合類型。Done 完成Return to a previous menu返回到先前菜單。