Alter current Bollinger band EA (EASY)

ILL TELL YOU HOW THIS EA CURRENTLY WORKS ---- THEN ILL EXPLAIN HOW I WANT IT ALTERED 

CURRENTLY THE EA WORKS THIS WAY

BUY EXAMPLE: BOLLINGER BAND SETTINGS ( PERIOD 20, Deviation 2, Apply to Close ) 

• When the first candle CLOSES below the BOTTOM Bollinger band line -- The EA enters a Buy position.
• The TP only exits once a candle CLOSES above the UPPER bollinger band line.
• No hard SL 

HOW I WANT THIS EA ALTERED ( NEW VERSION )

BUY EXAMPLE: 

• I WANT THE FIRST CANDLE TO ENTER ---- when the first candle closes below the lower Bollinger band line but only the only difference is the Bollinger band deviation is set at 3
• Then i want the TP to exit when the first candle closes above the upper bollinger band but setting at 2 standard deviation 
  
  

SELL EXAMPLE: 

• I WANT THE FIRST CANDLE TO ENTER ---- when the first candle closes above the upper Bollinger band line but only the only difference is the Bollinger band deviation is set at 3
• Then i want the TP to exit when the first candle closes below the lower Bollinger band but setting at 2 standard deviation