Sm atr 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 Sm atr.rar contains Sm atr.ex4 and Sm atr.mq4)
Free Download Sm atr mt4 indicator 
How to install Sm atr in forex trading platform metatrader 4?
- Extract the downloaded Sm atr.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 Sm atr.ex4 and Sm atr.mq4 files into indicators folder and restart the MetaTrader 4.