Shopper fields and Show in registration form

[ClaudioRomeo]

I'm now testing the 3.0.14 version, but this issue applies to 3.0.12 as well. I don't know if it also applies to older versions.
In the Shopper Field page there once was the column called Show in Registration Form. Now there is the column called Show in cart form.
But can I still set the presence of a shopper field in the registration form? How?
On top of the Shopper Field page there still are the Registration buttons (On and Off), but do they have any effect? How can I realize if the setting is on or off?