Nightawk AX8 AX6600 (RAX70) Firmware improvement

Greetings,
I'd like to know if it could be possible to consider an improvement on Nighthawk AX8 AX6600 firmware in order to apply VPN Client (such as PureVPN client) usage on specific wireless bands / wire ports instead of all incoming connections (all wireless bands and wire ports) as currently ?

(see attached jpeg for an exemple)