Import authorization service config

I am trying to import previously exported auth configs in keycloak 15.0.2 (running on docker).
I can’t do this from the web interface because I get the “Script upload is disabled” error (even if I set “-Dkeycloak.profile.feature.upload_scripts=enabled”, and I can indeed import realm configs).

How can I do that?
Also, is there anything like KEYCLOAK_IMPORT to import auth configs in keycloak docker?