The 4 Trend BLine v0.1 indicator is a useful and popular Forex technical analysis tool for MT4. It is free to download and use, and is a popular choice among traders who want to identify trend reversals quickly and accurately. The 4 Trend BLine v0.1 indicator is based on the concept of using two moving averages and a line of support/resistance. It plots two moving averages on the chart, one faster and one slower. When the faster moving average crosses the slower one, it indicates a potential trend reversal. The line of support/resistance is used to confirm the trend reversal. If the price breaks through the line, it is an indication of a trend reversal. The 4 Trend BLine v0.1 indicator is easy to use and can be applied to any chart. To use it, simply select the two moving averages and the line of support/resistance, and then set the indicator parameters to your desired values. Once the indicator is set up, you can watch for potential trend reversals on the chart.