AppData and BluePrinting
Only non-versioned Content Manager content items can have AppData that can be inherited from a parent item.
BluePrint support for Content Manager items (that is, the notion that a content item can inherit its AppData from a parent item, or define its own AppData separately from its parent item's) is available for non-versioned content items only. Examples of non-versioned content items are Folders, Workflow Process Definitions, Structure Groups and Keywords.