I have a site I am migrating to J4 with the Newsberg template, which relies heavily on the Featured Image. The site I am migrating has some 15,000+ news articles so it is not practical to manually assign for all of them.

All articles already have the intro and full text image, and I would want to use the Joomla full text image as the featured image - it seems unnecessarily duplicating to have two things doing the same thing.

Is there a way I can en mass set the full text image to be the featured image, or within the code, default to using to the full text image if a featured image is not provided?

Thanks!