Get the root SettingsGroup object and set the personal value for the maximum column width for comments in MATLAB.

s = settings
s.matlab.editor.language.matlab.comments.MaxWidth.PersonalValue = 80;

Display the current values for the maximum column width for comments in MATLAB. Since the personal value is set and the temporary value is not set, the active value for the setting is the personal value. For more information on how the active value is determined, see Access and Modify Settings.

s.matlab.editor.language.matlab.comments.MaxWidth

ans = 
 Setting 'matlab.editor.language.matlab.comments.MaxWidth' with properties.

       ActiveValue: 80
    TemporaryValue: <no value>
     PersonalValue: 80
      FactoryValue: 75

Clear the personal value. The active value for the setting is now set to the factory value.

clearPersonalValue(s.matlab.editor.language.matlab.comments.MaxWidth)

ans = 
 Setting 'matlab.editor.language.matlab.comments.MaxWidth' with properties.

       ActiveValue: 75
    TemporaryValue: <no value>
     PersonalValue: <no value>
      FactoryValue: 75