Collection portlet with "modified" instead of "effective date"

The collection portlet of Plone has the "Show dates" option which shows enabled the display of the effective date of content. However we have a collection "Recent changes" sorted by modified/descending. Obviously we want to display the modified date instead of the effective date in the portlet. Is there some variant of the collection portlet with some more flexibility reagarding the display of the dates?

Isnt that controled by "show byline" somehow?

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