The author of the idea: Scriptor, the author of the MQL5 code: barabashkakvn.

The indicator shows the so-called safe zone, which is calculated using the High, Low and Close prices, and the Moving Average indicator.

It is recommended to perform trades when the indicator is positioned horizontally:

• If the price is above the horizontal segment of the indicator, open a BUY position;
• If the price is below the horizontal segment of the indicator, open a SELL position.