Customer query problem on Postgres

Hi,
“I have attempted to create a custom query named vaid_pg_replication to identify replication lag on postgres.
I have added the query to pmm client version pmm2-client-2.35 :
-rw-r–r-- 1 root root 1257 Jun 2 18:05 /usr/local/percona/pmm2/collectors/custom-queries/postgresql/medium-resolution/my_query.yml.”


$ cat /usr/local/percona/pmm2/collectors/custom-queries/postgresql/medium-resolution/my_query.yml
vaid_pg_replication :
  query : "SELECT application_name,client_addr,state, \\
                 (sent_offset - (replay_offset - (sent_xlog - replay_xlog) * 255 * 16 ^ 6 ))::text AS byte_lag \\
                  FROM (SELECT \\
                          application_name,client_addr,state,sync_state,sent_lsn,write_lsn,replay_lsn, \\
                          ('x' || lpad(split_part(sent_lsn::text,   '/', 1), 8, '0'))::bit(32)::bigint AS sent_xlog, \\
                          ('x' || lpad(split_part(replay_lsn::text, '/', 1), 8, '0'))::bit(32)::bigint AS replay_xlog, \\
                          ('x' || lpad(split_part(sent_lsn::text,   '/', 2), 8, '0'))::bit(32)::bigint AS sent_offset, \\
                          ('x' || lpad(split_part(replay_lsn::text, '/', 2), 8, '0'))::bit(32)::bigint AS replay_offset \\
                        FROM pg_stat_replication) \\
                  AS s"

   metrics:
    - application_name:
        usage: "LABEL"
        description: "Node Name"
    - client_addr:
        usage: "LABEL"
        description: "Node IP address"
        - state:
        usage: "LABEL"
        description: "State of the connection"
        - byte_lag:
        usage: "GAUGE"
        description: "Replication Lag behind Master in second"

However, I cannot find the custom query in the dashboard dropdown under advanced data exploration. Have I overlooked something

Thank