Represents a Chart X axis. This object's properties directly affect the display of the X axis and the X Categories in the Outliner.
This example shows how to sort by facts for Quarter X categories:
ActiveDocument.Sections["BooksChart"].XCategories["Quarter"].SortByFact()
Hide(), SortByFact(FactName by String, SortFunction BqSortFunction, [optional] BqSortOrder SortOrder), SortByLabel{[optional] SortOrder as BqSortOrder }
Read-only: Property Name as String, SortFactName as String, SortFunction as Number, SortOrder as Number