I am assuming the DMZ 1 and DMZ 2 are connected to the LAN interfaces, in this case, you won't be able to do NAT. If the DMZ1 or DMZ2 is connected to the WAN interface then you can perform 1:1 NAT or 1:Many NAT, but it has to be performed from LAN to WAN interface.
I would recommend to use make a wish from the dashboard so our product team will have this feedback.
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