Seeing external_user_id for embed users with the "New Users Page" lab enabled

I can’t seem to work out how to see the external_user_id for embed users once the “New Users Page” lab is enabled.  previously you could see it on the admin/users page under credentials but with the new lab enabled this is long longer displayed which makes it impossible to determine exactly which user you are editing etc unless you are also passing unique values into a separate user attribute.  Any thoughts?

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