I want to edit the email templates that are being sent but do not know how to put in the field names. For example, I want to display the username, would I put wp_registration_login or {wp_registration_login} or {{wp_registration_login}} It would be smart to put the default templates in there so I can see how it’s done and just tweak the defaults.
for other meta fields we are working on new version and it will have all keys being submitted. for now there are 6 template tags which are listed in email settings.