The Repeating Image Box widget requires a repeater field either on the current page, preview page(post etc) or on an option page. The supported subfields are text, textarea, wysiwyg and image.
Widget
You find it easiest by searching for ACF Repeating Image Box in the Elementor Search Widget … field:
Drag the following widget icon into your section to add the widget.
Settings
Layout
Styling
Row
Header
Image
Header
Example
