Synching virtual HP Prime backups using connectivity kit?

[Orome]

Assuming I can get over my squeamishness about the HP Connectivity Kit, how do I use it to sync backups among a physical calculator, a macOS calculator, and an iOS calculator? I see how to make backups from the physical calculator, but the macOS calculator doesn't even appear in Connectivity Kit, and there seems to be no way to connect with or even create or import backups from/to the iOS app.