How to switch domains in connect.yandex.ru?

Question

Yandex

Tell me, if several domains are connected to connect.yandex.ru, how to create mailboxes for different domains?
Now in the admin panel you have to select "Domains" > the desired domain each time and click the "Make primary" button, after which you can create a mailbox in the desired domain.
Is it done this way or is it still possible to switch domains somehow differently?
For example, why can't you switch the domain directly in the mailbox creation form:
Organizational structure > Add > Add employee
Why such complexity?
Or is it done in some other way?

Answer 1

I created my own organization for each domain, I did not invent anything else.
If you have any thoughts, write.