Asking about federation upstream set in messaging-topology-operator

[amoon78]

Hello team.
I'm trying to find a way to define federation upstream set with messaging-topology-operator.
In RabbitMQ, we can set federation-upstream-set to refer to it in a federation policy definition that repeatedly listing upstreams.
I can't see any example or description in CRD though.
Is there any way to set federation-upstream-set to be used for federation policy? or, is there any good way to define federation policy for multiple federation upstream?
The reason why i'm looking for the way is - I have multiple federation that has same pattern with different uri (federation upstreams) and used one policy with federation-upstream-set so that, multiple federation links can run with same policy (same pattern)
Wondering if it's not supported feature in messaging-topology-operator yet. If so, anyone have thought/experience how to set same policy on multiple upstream federations with messaging-topology-operator?

Thank you!