Normal Alert

This alert can be defined as a modified bullish engulfing.
The normal alert is created with 2 candles.
To create a normal bullish alert, the close price of the calculation candle must exceed the high price of the previous candle.
To create a normal bearish alert, the close price of the calculation candle must exceed the low price of the previous candle.
The calculation of these normal alerts is done at the close of each of the candles.

ABBREVIATIONS AND SHORTCUTS USED FOR NORMAL ALERT
Candle from which the calculation is made Candle	Y
Candle preceding the Y candle 				Y-1
Y candle close price					yy
Y-1 Candle High Price					YH-1 
Lowest price of Y-1					YL-1 candle

CALCULATION FORMULA FOR A NORMAL ALERT
For a buy alert 					If YY > YH-1
For a sell alert 					If YY < YL-1

This indicator will also consist of 3 filters to filter normal alerts:
"The Previous Filter"
"The COMBO Filter"
"The Level Filter"
They can all be activated at the same time, or none of them, or even 1 or 2 filters.

The indicator will need to meet the conditions of all enabled filters to create an alert.