Icloud-binding: What does "Support for Two-Factor-Auth" mean? How does it work?

The online documentation of the current iCloud-binding says that two-factor-authentication ist supported. What does that mean. With my account it does not seem to work. I had to Change my icloud-Password for security reasonsā€¦
Isnt there a way to add application-specific-passwords-support? :slight_smile:
I think that would be the best solution.
regards, JĆ¼rgen.