The Pama GannGrid indicator is a useful and popular free Forex indicator for MT4. The indicator plots horizontal lines on the chart, which represent support and resistance levels. The indicator also plots vertical lines, which represent potential trend lines. The Pama GannGrid indicator is easy to use, as it automatically adjusts the lines to match the current market conditions. The Pama GannGrid indicator is a powerful tool for Forex traders, as it provides valuable insights into market behavior.