Hi JPVikholm, the image infrastructure mostly assumes that the image exists on your disk somewhere with a filename for it. The filename is stored and used as the name that's displayed in the list of images. When you have an image in the clipboard it is missing that, and so it does not really directly fit in the current mechanism to easily do a copy/paste of an image from the clipboard.

Drag and drop is focused on handling geometry files so that it works the same as File > Open.

- Michael