You can now import and export file notes with sidecars! There's a technical compromise I had to make here, which is that a note in a sidecar comes in the form 'name: text', both for import and export. If you want to import a whole bunch of notes, you'll need to wangle them into this format, or, if you can, use string processors to get them into that format. There's an escape sequence, ':\ ', for if your name has a colon in, too. Have a play with it and you'll see how it works.