I made some improvement and modification to comply with pine script version 4.
Basically, it is a strategy based on proce action, supports and resistance and can be used also for scalping.
It could be improved with exit rules, stop loss based on ATR etc.
I have also a study with alerts.
Please use comment section for any feedback or contact me if you need support.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.