The Crossover Arrows   identify the crossover points on indicators.

For upper indicators, you can select 2 indicators and the chart will show the crossover arrow.

Example:  If you select the 5 day and 20 day SMA the Green arrows will show the 5/20 crossover points when in an upward movement, Red for downward.

Only 2 moving averages can be selected at a time when utilizing this tool.  If you wish to make a change to another moving average indicator,  one must first be deselected before adding the new indicator.