Using Output Elliot Oscillator Indicator in cBot

Hi,
I would like to use the Elliot Wave Oscillator indicator for the strategy of opening positions in the cBot.

For now I was able to use the LastValue of the various Output (UpTrend, DownTrend, Line). 
I adding the following code:

In head:

   public int FastPeriod = 5;
   public int SlowPeriod = 34;

   private ElliotOscillator EWO;

in protected override void OnStart()

   EWO = Indicators.GetIndicator<ElliotOscillator>(Source, FastPeriod, SlowPeriod);

in private int MyGetSignal() - "Where do I put my opening strategy" for example:

   if (EWO.UpTrend.LastValue > EWO.Line.LastValue)
   Result = 0;

   if (EWO.UpTrend.LastValue < EWO.Line.LastValue)
   Result = 1
     :
     :
   ecc....

But I would like to read and use OHLC value of Output (uptrend, downtrend, line) for example of the last 3 candlesticks.
I've never done this thing. 

How can I do?