[knot-dns-users] ECS in responses

Hi, We would like to enable ECS responses in our Knot server in order to indicate to recursives that they should send it in requests if they can. The goal is gauge how widespread usage of this feature this is and to collect some statistics on the client networks being transmitted. We don't have a way of providing tailored responses yet (not sure how this would be done, but that's another topic.) Is there a way of enabling ECS so that it's included in responses, perhaps with a scope prefix-length of 0 (as described in section 12.1 of draft-ietf-dnsop-edns-client-subnet-08)? Thanks, Chuck