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Help:RichText editor - Quotes
"Block quote is used for longer quotations that are distinguished from the main text by left and right indentation. It is recommended to use this type of formatting when the quoted text consists of several lines or at least 100 words. To insert a shorter quotation fragment, use the Inline quotation style from the Styles drop-down list. You can also use the matching Cited Work style to format the quotation source."