The kicker pattern is deemed to be one of the most reliable reversal patterns and usually signifies a dramatic change in the fundamentals of the company in question.
It is a 2-candle pattern, whereby there is a significant gap between the body of the most recent candle and the previous candle.
A bullish kicker is one in which the most recent candle is bullish, and the previous candle is bearish.
A bearish kicker is one in which the most recent candle is bearish, and the previous candle is bullish.
I notice this works best for stocks, as there are many gaps in a stock chart. Currencies have few gaps, and thus few kickers.
From within the settings, you can set the minimum permitted gap between the two candles, specified in price, accurate to 6 decimal places; 0.000001.