Thread:WKPQ/@comment-34326785-20191215164818/@comment-27524282-20191215165307

If you're using visual editor, click on the CollapsibleGallery temple and it'll bring up several template fields. Images are listed in the "1" field and you'll need the full image name to add it.

It's similar with source editor. Look for the template, add a new line for your image and type in the full name.