Parent_host_name outside zone - dependency

How do you manage parent_host_name outside zone when you try to play with Overview/Status Map plugin ?

I mean, right now our Dependency apply is:

apply Dependency "Parent" for (parent in host.vars.parents) to Host {
  parent_host_name = parent
  disable_checks = true

  assign where host.address && host.vars.parents
  ignore where in host.vars.parents

But this will give us a problem if we want to “connect” all the zone together associated to their gateway …

We are having fun with the “statusmap” plugin but we can’t connect all of them correctly with this issue…