Points on the chart may be removed or excluded from the chart. Excluding a point removes it from the calculations for UCL, mean and LCL. The point remains visible but with a different colour. Removing a point excludes it from the calculations for UCL, mean and LCL. The point is removed from the chart.

Removing Points

Points can be removed from the chart by a left mouse click on the point to be removed. Select the menu option remove point. The chart will redraw with the selected point removed.

Excluding Points

Points Points can be excluded from the chart by a left mouse click on the point to be excluded. Select the menu option remove point. The chart will redraw with the selected point excluded.
see Including Points for reverse actions.
Remove/Exclude Points