MACD modification

Add two parameters to an existing EA for Futures trading

1. Execution Delay - when the EA detects a signal to trade then delay the trade execution by N number of seconds.

2. Change the MACD line to MACD zero Line - Currently the EA signals buy when the histogram is above or cross above the MACD line and signals sell when the histogram is below or cross below the MACD line. I would to change this. I would like the EA to signal buy when the histogram is above or cross above the MACD zero line and signal sell when the histogram is below or cross below the MACD zero line.