Question update ieee (secondary) mac address

[FilipDem]

Hi,
thanks for this implementation.
I used this already in the past and want to recuperate my cc2531 to use it as a router.
In the past I used this device as coordinator and replaced it by another one (and cloned the mac address).
This means that I would be able to update the (secondary) ieee mac address of the cc2531 (to avoid changing my whole network).
Would this be able? I would assume that it means writing at a certain offset?
Thanks for your feedback.