The Market Reversal Alerts EA is powered by the indicator of the same name (available here) and trades based on market structure shifts. The EA will by default take a trade every time a market reversal alert is sent by the indicator and will trade those alerts based on the conditions and filters you set in the EA settings. It draws support rectangles as price moves in it’s current trend direction and trades when price reverses sharply and signals a market structure shift or a re-test of the reversal. More at the indicator page.