frctal

Hi,  I need the help  programmers
Thanks in advance

I want to add two conditions to this robot
first- I want to add a moving average that only opens a buy position if it is above the moving average and only opens a sell position below it.
secend- And I want this robot to have only one open trade

using cAlgo.API;
using cAlgo.API.Indicators;
namespace cAlgo.Robots21
{
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class FractalChaosBandsSample : Robot
    {
        private double _volumeInUnits;
        private FractalChaosBands _fractalChaosBands;
        [Parameter("Volume (Lots)", DefaultValue = 0.01)]
        public double VolumeInLots { get; set; }
        [Parameter("Stop Loss (Pips)", DefaultValue = 10)]
        public double StopLossInPips { get; set; }
        [Parameter("Take Profit (Pips)", DefaultValue = 10)]
        public double TakeProfitInPips { get; set; }
        [Parameter("Label", DefaultValue = "Sample")]
        public string Label { get; set; }
        public Position[] BotPositions
        {
            get { return Positions.FindAll(Label); }
        }
        protected override void OnStart()
        {
            _volumeInUnits = Symbol.QuantityToVolumeInUnits(VolumeInLots);
            _fractalChaosBands = Indicators.FractalChaosBands();
        }
        protected override void OnBar()
        {
            if (Bars.ClosePrices.Last(1) > _fractalChaosBands.High.Last(1) && Bars.ClosePrices.Last(2) <= _fractalChaosBands.High.Last(2))
            {
                ClosePositions(TradeType.Sell);
                ExecuteMarketOrder(TradeType.Buy, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
            }
            else if (Bars.ClosePrices.Last(1) < _fractalChaosBands.Low.Last(1) && Bars.ClosePrices.Last(2) >= _fractalChaosBands.Low.Last(2))
            {
                ClosePositions(TradeType.Buy);
                ExecuteMarketOrder(TradeType.Sell, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
            }
        }
        private void ClosePositions(TradeType tradeType)
        {
            foreach (var position in BotPositions)
            {
                if (position.TradeType != tradeType)
                    continue;
                ClosePosition(position);
            }
        }
    }
}