Smoothwan with xfinitywifi

New here. Is there a way to use smoothwan with xfinitywifi? Also is there a way to change the macaddress on smoothwan wifi to spoof the xfinity portal.

In Speedify UI, the interface should show something like this:
image

You can change the MAC address using Services → Terminal:

nano /etc/config/wireless

Add under wifi-iface*:

option macaddr 'xx:xx:xx:xx:xx:xx'