To share management of your domain:
Sign in to Google Domains.
Select the name of your domain.
Open Menu...
Click Registration settings.
Under "Domain permissions," click Add user.
Enter the email address growdns@gmail.com.
Confirm growdns@gmail.com as a user.
PushPress will receive an email notification we've been added.
Once you grant access, the PushPress Team will receive an email notification with a link to log into Google Domains.
This will allow us to log in to your account and transfer your DNS to your new website.