Indicator based on Wicks.

Draw a Down arrow and alert when a bar has an upper wick range greater than or equal to its open to close range and X time greater than the lower wick range and the HH of the bar is the highest high of the last X bars.

X% of the upper wick range must be greater than the high of the prior bar.

For example – if the % is 80%.  And the upper wick is 10 pips.  8 pips of the upper wick must be greater than the high of the prior bar

Draw an Up arrow and alert when a bar has a lower wick range greater than or equal to its open to close range and X times greater than the upper wick range and the LL of the bar is the lowest low of the last X bars

X% of the lower wick range must be less than the low of the prior bar.

For example – if the % is 80%.  And the lower wick is 10 pips.  8 pips of the lower wick must be less than the low of the prior bar

Full spec in zip