Fine Grain Permissions - Admins (Impersonation)

Experimenting with admins to have ‘impersonation’ only on a select ‘Client’ – using the following as a template - Server Administration Guide

Does Keycloak offers ability to restrict realm admins to only have ‘impersonation’ on a particular ‘Client’? So far have not been successful with various permutations from the above linked template.

Thanks.