Export, edit, then import - not working

[henrykuijpers]

For some reason, when exporting (to Json format), then editing the file (actually, creating a new one with edited content), makes it not possible to import the file again. The file is greyed out when trying to select it.

The original exported file isn't greyed out and works just fine.

I'm trying to add contacts to the file, so that they can all be imported. I have a wall panel which I'm trying to run with this app, so that I can call another wall panel in another room. Unfortunately, the wall panels don't have a camera, so it's not possible to add contacts through qr code.

Another thing that would be nice, is to be able to add contacts through typing.