[keycloak-user] Keycloak LDAP dynamic mappers values

Hi all, I have integrated my Keycloak instance with LDAP, I need to create user with some attributes that not exists in create user form, like uidNumber and etc. The uidNumber and homeDirectory need to be created dinamically, my question is: 1. Can I create hardcoded-ldap-user-attribute that get the value dinamically? 2. I can create more fields in create user form? Thanks and Regards Rodolfo Azevedo