It does not seem to work in the bookmark/links docker.
when you import an image (file/import) you must choose "externally linked". then, you can manage it on the links docker
Are you able to repeat exactly the problem I mentioned? Type text, go the links/bookmark docker and pick 'file' and try to browse for the file. Remember this is X7.
Yes, I used X7 for test it. But you don't need to type text, if you pick a file it will be imported as externally linked image (and you will see a low-resolution preview)