The All Volume Average Indicator is a useful and popular free Forex indicator for MT4. It is designed to help traders analyze the volume of a currency pair over a given period of time. The indicator plots a line on the chart that represents the average volume of the currency pair. This line can be used to identify trends in the volume and to make more informed trading decisions. It is a great tool for traders looking to gain a better understanding of the volume of a currency pair and its relation to price.