ArgumentOutOfRangeException
   at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource)
   at System.Collections.ObjectModel.Collection`1.Insert(Int32 index, T item)
   at Quicker.View.X.Nodes.StepListControl.Paste(Int32 index)
   at Quicker.View.X.Nodes.StepListControl.<>c__DisplayClass16_0.yCEeL7u0hh0(Object o, RoutedEventArgs args)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)