[keycloak-user] import only users into a realm

Hello, I wanted to know if it possible to only import users into a realm without overwriting the realm settings (clients, smtp, etc). I've looked at http://keycloak.github.io/docs/userguide/keycloak-server/html/export-impo... and already successfully exported the realm and users in different files, and I want to load the users into another keycloak instance. Off course I could just do trial/error experiments, but maybe someone already has some experience on migrating only users? Best regards, Johan