Add columns to AD user listing

Would like to be able to add columns to the AD User Listing.  Currently the only column is "Active Directory User".  Would like to be able to add "Display Name" at a minimum but it would also be nice to be able to add any other columns that exist in AD.  Our "Active Directory User" names are all numeric.  It would be nice to be able to have a name displayed as well to help ensure that you are updating the correct person.