Device tracking using mac address and range extenders

Is it possible to have more than one mac addresse per device? I have some range extenders that will alter the mac addresse. Or at least the first four digits.

Add both device trackers to a group. The group will be home when either mac is reachable and not home when both macs are unreachable.

How do I do that?

https://home-assistant.io/components/group/ is a good place to start.