Changing email during self registration

Greetings, dear okta team.
Currently I’m implementing okta self registration possibility, using okta idx libraries (swift and android, doing for both platforms).

Our client wants to provide a possibility for the user to change email address in case it was entered with mistakes.
But it seems, that OKTA uses email as a main account id reference. Does this means that I need to create a new account for the newly entered email? Or it is possible to change it during self registration?

The issue is that when I select email type for select-authenticator-enroll remediation, I cannot provide specific email address (okta uses the one, saved for provided account) like in the case with mobile phone.

I’ve also tried to use reenroll-authenticator remediation, but it is not available during this stage.

Any tips on that are highly appreciated!