Managing Users (including Enterprise Users)

@sstead I think before, I could type en email of a non-user into the “add manager” field and if it was not recognized, a confirmation was sent to that person and an account created. But I don’t see that now, have we removed that possibility?
I am stuck with a simple issue : I want to add a manager to my hub, he has not yet an account. I can ask him to create an account, but as long as his email is not verified (so as long as he has not created himself an enterprise) I can’t see his email in the manager dropdown list. But I don’t want this manager to create an enterprise, I just want to add him as a manager…
How can I do ?