I create these commands to add one or more cover art to selected mp3 by button/hotkey.
- This command add jpg from clipboard to selected mp3.
- You have jpg files to the clipboard. You select files and run command to add jpg to selected mp3.
- This command add jpg from selection to selected mp3.
- You select jpg and mp3 files and run command to add selected jpg to selected mp3.
Download either script (or both), then drag it to the list under Preferences / Toolbars / Scripts. You will then have two new commands which can be used in the button editor.