Simple EA based on MACD. I do have an Indicator that alerts buy/sell. All I need is a modification for auto open position

I do have a MACD indicator which alerts buy/sell signal based on slow and fast MA. I want it to be modified wherein once the arrow signal pops-up. The EA will automatically open position, set TP and SL accordingly. And some additional settings like to only order when it is engulfing bar.

1. Break Even.

2. Auto Trailing stop. 

3. Partial user defined position close.

4. Enter position after alert if;

• Engulfs previous bar

5. Close position after either;

• Opposite alert shows-up

• Price breaks alert open-price + modified pips.

Attached is a screenshot to it.

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