[keycloak-user] How to associate roles to users based on client

Hi, I would like to know how to associate roles to users based on client. For example, if we have 2 client applications using a Keycloak server. Both the applications have their set of users which are synced into Keyclock. All users are shown together under Users page of KC. Similarly we can load roles also. I wonder how to associate these application (client) specific roles to only the users related to that client? What currently I do is select user and go to Role Mappongs & choose Client Roles & then set from available roles. I am looking for something like auto sync for user which also does this role mapping as well. Please share your thoughts. Thanks, Valsaraj Viswanathan