With webforms this is possible by placing two widgets on the page and changing the ContentViewDisplayMode
property in advanced widget settings.
Automatic is the Default but if you change it to Master it will show the list.
However Feather widgets don not have this property.
As a workaround you can create two new views for the Feather news widget which will be used for showing the News list of the second widget on the details page.
you create 2 new files, for example: List.NewsListCustom.cshtml
Now on your detail page you use the 2 custom views for the "News List" widget.
Please observe following screencast with a small demo:
There is a Feature Request logged regarding the "Add ContentViewDisplayMode for Feather content widgets", available here:
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