Moving Average for Specified Pair

This cBot code returns moving moving average information based on the chart the bot is attached to.  How can I get it to return moving average information for the pair "USDCHF" regardless of what chart the bot is attached to?

using System;
using cAlgo.API;
using cAlgo.API.Indicators;

namespace cAlgo
{
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class SampleTrendcBot : Robot
    {
        protected override void OnTick()
        {
            MovingAverage ma = Indicators.MovingAverage(MarketSeries.Close, 8, MovingAverageType.WilderSmoothing);
            Print(ma.Result.Last(0));
        }
    }
}