Dear Lydia and Thiemo, I wasn't yet subscribed to the list so I couldn't see your previous answer. Anyway, I'll update my MediaWiki and Wikibase!
Thank you so much, Giorgio
2018-06-21 10:50 GMT+02:00 Thiemo Kreuz thiemo.kreuz@wikimedia.de:
I responded to this already on June 1st. Where did my email ended?
The answer is that your MediaWiki and Wikibase versions are outdated and don't support this feature: https://data.leibnitiana.eu/index.php/Special:Version
Best Thiemo
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