See
https://www.mturner.org/devel/doku.php?id=playground:imagepaste&do=
The boat was pasted into Edge, the small menu into IE.
Both with the supplementary image set to on.
You have to copy the image into your clipboard, you can't just move it from the desk top. This requires that you have a program that opens and displays the image and then has a function for copying. The image viewer in Windows will do this. It does work in Chrome.
See:
https://www.dokuwiki.org/plugin:ckgedit#image_drag_and_drop