[criddell]

It’s also documented in the iPhone User Guide.

You can get it through Books or on the web:

https://support.apple.com/en-gb/guide/iphone/iphf2746307f/18...

[minkles]

No one reads the manuals these days.

Apart from me apparently.

[elashri]

I work mainly with undocumented stuff. That taught me to appreciate when there is manuals and documentation for anything and I read them. I don't watch YouTube videos, I read the manual. Of course until I can't figure it out and then still look into YouTube anyway.