Option enable/disable vpn on wifi

I use GL-MT1300.
My need is that I want to have an option to enable/disable at SSID. so that I can have one SSID with VPN and other one without VPN.
I know VPN policy provides an option at guest wifi level. But I have need to add all other domain IPs/Mac to enable or disable VPN which becomes tedious and If MAC address of a device, we need to remember to add it.

This configuration is not currently supported, we will consider your requirements in the future development.

Thanks. meanwhile how can I specify Include all domain IP or MAC to use VPN in the VPN routing policy?