Add Simple HMA Indicator To Existing EA

I would like to add the attached HMA indicator to the attached EA. I would like to retain the changeable parameters of the HMA indicator and have them changeable within the EA. I don't want to change any of the logic of the EA except for:

-EA will only place buy orders when a green candle forms and the HMA is up/green

-EA will only place sell orders when a red candle forms HMA is down/red

This EA trades based on the direction of the previous candle, and I only want it to open positions if the completed candle matches the trend of the HMA (I.e., red candle + red HMA = Sell and green candle + green HMA = Buy). If a up/green candle forms but the HMA trend is red/down, the EA should not open any orders when the candle completes. Conversely, if a red/down candle forms but the HMA trend is up/green, the EA should no open any orders when the candle completes. 

Lastly, I would like the HMA visible on the chart the EA is attached to. It's important I can see the HMA so I can adjust the parameters accordingly. 

Thank you. 

-Sigma