The index automatically builds significant trend lines and exhibits purchase and sell signals. Signals are shaped to get reflection and for a breakdown out of the support and resistance lines. When a sign arises, the indicator displays it as an arrow of the given colour and sends the kind of messages specified in the input parameters . In the indicator preferences, you can set the signal type, the maximum space to the trend line, the type of alarms, in addition to the settings of the arrows and lines .