This command or system variable is not documented in the Help system for one of several reasons, including

• It is obsolete, but included in the product to maintain legacy script compatibility
• It was included for testing purposes and has limited or no functionality
• It is a special case of a similar, documented command and is used in the menu or the ribbon only

Use Search to find additional information about the feature in which you are interested, and the documented commands and system variables associated with it.