I am looking into better customising my WikiBase to the needs of my community. I want to create a separate sub-heading (just like Wikidata) for external identifiers and found some terse documentation on it here: https://www.mediawiki.org/wiki/Wikibase/Installation/Advanced_configuration#Optional_settings 

I would like to know which other options this feature can give me. Do any of you have more information on the settings possibilities here? I'll see if I can expand the manual page slightly with the outcomes of this discussion.

The only example given (the configuration of Wikidata):

$wgWBRepoSettings['statementSections'] = [
	'item' => [
		'statements' => null,
		'identifiers' => [
			'type' => 'dataType',
			'dataTypes' => [ 'external-id' ],
		],
	],
];

Do I read this correctly when I read that everything is under the Header 'Statements' because there is no filter (null)? And that a new section 'identifiers' is created by filtering on dataType is one of 'DataTypes' 'external-id' here?

What are the other options for 'type' and what other variables need to be created in order to make other types work?

Kind regards,

Maarten Zeinstra

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