At the bottom of the List User admin tool you will see a Add New User link. Click that link and you will be able to add a new user directly within the admin tool without needing to go through the registration verification process.
The form displayed uses the field on/off settings set within the REGISTRATION SETUP > GENERAL SETTINGS admin tool. You are also able to directly assign a user group to the user as you register.
This feature does NOT send out the successful registration email to the inserted user.