Sometimes you need to gather additional information about a user, but the system doesn’t have appropriate fields: for example, shipping address, an astrological sign, a pet’s name. In this case you can create additional fields. Go to 'Users' section -> 'Users' -> 'Additional fields'.
Please note: You need to indicate a title for a field for correct work.
You can add a column with the data of this field to a list of users.