Two per bar is a mt4 (MetaTrader 4) indicator and it can be used with any forex trading systems / strategies for additional confirmation of trading entries or exits.
(downloadable file Two per bar.rar contains Two per bar.ex4 and Two per bar.mq4)
Free Download Two per bar mt4 indicator 
How to install Two per bar in forex trading platform metatrader 4?
- Extract the downloaded Two per bar.rar.
- Go to “File menu” in Mt4 trading platform and click “open data folder”. Open Mql4 folder and open the indicators folder.
- Now paste the Two per bar.ex4 and Two per bar.mq4 files into indicators folder and restart the MetaTrader 4.