The MTF ZigZag indicator is a useful and popular free Forex indicator for MT4. This indicator is designed to detect and display the most important highs and lows on the chart.The indicator plots the ZigZag lines on the chart, which are used to identify the highs and lows. It also provides the option to set the depth of the ZigZag lines, which allows traders to customize the indicator according to their trading style. Overall, the MTF ZigZag indicator is a useful and popular free Forex indicator for MT4 that can be used to identify possible entry and exit points, as well as to identify possible support and resistance levels.