Returns or sets a Variant corresponding to the default tab stop for all text in the active publication. Valid range is 1 to 1584 points (0.014" to 22"). Once set, numeric values are considered to be in points. String values may be in any unit supported by Microsoft Office Publisher. Point values are always returned. If values are outside the valid range, an error is returned. Read/write.
expression A variable that represents a Document object.