Here you can create a new user or group. You must provide a user or group name and choose all objectclasses you want added to the user. The list of objectclasses is based on the schema.conf file can be found in the /webmin_install_dir/ldap_groups_LDAPapi directory. After you have selected objectclasses you can choose which optional attributes you want added to the users or group credentials. Attributes marked as required will automaticely be added to the users credentials. Note that schema checking is done on the client side so the LDAP server must use the same configuration file for schema checking. If you use version 1.2 of openLDAP just copy the schema.conf file to /etc/openldap/slapd.oc.conf on the server. If you use version 2 try to include all schema files in /etc/opnldap/slapd.conf.