MAC Filter - Allow ethernet devices per MAC address

Would it be possible to add a feature to filter / allow devices per specific MAC address from the LAN ports outbound?
Not as an individual outbound rule, rather as a list of safe / registered MAC addresses allowed to be routed out across the WAN or SF.
This would be useful as well on outbound rules, specifically the universal rules to be able to have the option similar to When No Connections are Available - Drop the traffic, to drop the traffic when MAC Address is not registered.

Hi @Thys_Rossouw . I’d use firewall rules to do that – either outbound of internal, depending on what you wish to accomplish. The rules are really quite easy to construct. Would that not work for you?