Hi,
You can create a custom label and merge it with the auto labels:
NLinearScaleConfigurator scaleY = chart.Axis(StandardAxis.PrimaryY).ScaleConfigurator as NLinearScaleConfigurator;
NCustomValueLabel valueLabel = new NCustomValueLabel();
valueLabel.Value = 50;
valueLabel.Text = "50";
valueLabel.Style.ZOrder = 1;
valueLabel.Style.TextStyle.FillStyle = new NColorFillStyle(Color.Red);
scaleY.CustomLabelFitModes = new LabelFitMode[] { LabelFitMode.RemoveOverlap };
scaleY.CustomLabels.Add(valueLabel);
scaleY.CreateNewLevelForCustomLabels = false;
That will also remove any auto labels that overlap with the custom label.
Best Regards,
Nevron Support Team