Streak condition for a candle

I’m trying to create a condition for Streak scanner.

For example, a bullish Engulfing candle forms, we describe the condition with “0”, for previous candles we use “-1” “-2” etc.

But my question is how to describe the upcoming candle.

After forming engulfing candle, my condition is upcoming candle either immediate next candle or some candles later another bullish candle forms with certain volume, my entry should happen.

Please someone help me in this