usingcAlgo.API;namespacecAlgo{// This sample shows how to use a chart Fibonacci Retracement levels property to modify the fibonacci levels[Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]publicclassFibonacciLevelSample:Indicator{protectedoverridevoidInitialize(){varperiod=Chart.LastVisibleBarIndex-Chart.FirstVisibleBarIndex;varmax=Bars.HighPrices.Maximum(period);varmin=Bars.LowPrices.Minimum(period);varfibonacciRetracement=Chart.DrawFibonacciRetracement("FibonacciRetracement",Chart.FirstVisibleBarIndex,max,Chart.LastVisibleBarIndex,min,Color.Red);foreach(varlevelinfibonacciRetracement.FibonacciLevels){Print(level.Percent);if(level.Percent>62)level.IsVisible=false;}}publicoverridevoidCalculate(intindex){}}}