SUMMARY One of the few features I'm really missing from KDE Plasma is the ability to copy a remote http URL (to for example a jpeg) and being able to paste it into the file open dialog in KDE apps. This way you can quickly find a picture on the internet and put it in a KDE app without needing to download it to a temporary folder and navigate to there. This could be achieved by (quickly and dirtily) wget for example, but would still require multiple actions, so integrating such functionality in kio itself would make the workflow more efficient.
You already can! :) Just paste the URL of the file into the filename field in the Open dialog. Works great. I do this in Gwenview all the time.