Preparation for MT4 Strategy Tester

①　Tools ⇒ Options  ⇒ Max bars in history, chart:99999.... ⇒ reboot ⇒　see 2147483647 ⇒ OK

②　File ⇒ Open Offline ⇒ double click USDJPY, M1

③　Navigator ⇒ Scripts ⇒ execute Period_ConverterALL on it ⇒ see all offline timeframes are created