The Marks tab allows you to set properties related to marks.
Check to display return marks in documents.
Check to display the end of file mark in documents.
Check to display tab marks in documents.
Show single byte character space marks in the text.
Check to display double byte character space marks in documents.
Check to use different marks to distinguish CR from LF.
Show control character marks in the text.
Shows indent guides.
Reset to default settings. The Reset dialog box will be displayed and will allow you to copy from another configuration.