It is always good if the breakout is from a lengthy period of consolidation. This field is responsible for the breakout line length.
But more importantly it is the number that goes in to the calculation for the Green Alpha. If the Green Alpha Close is lower than the x number of bars back highest close, it will not be considered as a valid breakout. So, no stop loss point will be drawn
If there is no Stop Loss drawn under the Green Alpha Candle, it shows that it failed to close above X numbers back. In this case it is just another Green Alpha Candle, but no valid breakout.
highestO = highest(open, input_GreenAlpha_Resistance_Lookback)
highestC = highest(close, input_GreenAlpha_Resistance_Lookback)
It can be changed from 4 to 50 and default value is 20.