The user can disable editing for selected points of the chart series.
Executing the example requires that the HTML page contains a chart named chart1 with the enabled editing by points or by drawing (see Chart Editing by Points and by Drawing).
Disable editing for the first point of the first series:
series: [{ name: 'Value 1', data: [{ y: 1, editable: false }, { y: 5 }, { y: 4 }] }, ...]
After executing the example the first point of the first series is protected from editing.
See also: