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

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

Display the current values for the maximum column width for comments in MATLAB. Since the temporary value is set, the active value for the setting is the temporary 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: 80
     PersonalValue: <no value>
      FactoryValue: 75

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

clearTemporaryValue(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