[keycloak-user] Share resources with other users

I'm looking into the possiblity to share resources created in the client application to another registered user. Does keycloak provide support for that? Using the authz cient i cannot detect any attributes or fields to set besides the owner. I was hoping to set a custom attribute on the ResourceRepresentation object and use that in the policy evaluation. It should IMHO also be possible to create seperate resources for the shared resource with the user to share to as owner. But wouldn't that pollute te resources too much? I also found this feature request by Pedro Igor which might be related: https://issues.jboss.org/browse/KEYCLOAK-3169 Thanks again! /Richard