Specifies for the name pattern the doctype-specific group to select.
projectdoc.doctype.(doctype).document.name-pattern.group
This space property identifies the doctype-specific group within the Doctype Star Document Name Pattern to select for the name.
Note that space homepages and pages providing space properties cannot be nameless.
Example for the Topic Doctype
projectdoc.doctype.topic.document.name-pattern.group: 2
The example above selects the second group defined in the regular expression.