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Editing Options
StyleBoxAutoDelete
• StyleBoxAutoDelete is an option for cells that determines if a StyleBox wrapped around an expression should be automatically removed when the expression is edited.
• This option is useful for creating templates that require user input. For example, suppose you want to create a template for calculating integrals. You can highlight the part of the expression that the user needs to edit by displaying it in a different style, such as using a red color for the font: 
. If you set StyleBoxAutoDelete 
True, the red color will disappear as soon as the user edits the expression.
• The default setting is StyleBoxAutoDelete False.
