See documentation for the `format` parameter, at:
* https://www.mediawiki.org/wiki/Help:TemplateData
* https://www.mediawiki.org/wiki/Extension:TemplateData
Note: This will not function, until the code is deployed with this week's train (https://wikitech.wikimedia.org/wiki/Deployments)
However, here are two examples at beta cluster:
* http://en.wikipedia.beta.wmflabs.org/w/index.php?title=Template:Citation_needed/doc&diff=287699&oldid=131318
* http://en.wikipedia.beta.wmflabs.org/w/index.php?title=Template:Infobox_person/doc&diff=287700&oldid=82154
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Original title: html2wt: new templates should display one parameter per line
I understand this was partly discussed in {T53175} (with suggestions about how to handle the issue), but whatever happened next didn't seem to affect this :)
If you check out the source of https://it.wikipedia.org/w/index.php?title=Utente:Elitre_(WMF)/Sandbox_VE&oldid=64531360 , you'll notice a couple of templates at the top. Those were added with VE, and are collapsed, whereas editors on it.wp would want those kind of templates (which are basically infoboxes) to always display one parameter per line, no matter what the length of the template is.
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**Version**: unspecified
**Severity**: normal
**See Also**: T53003