PPPoE w/ Multiple Static IPs

New Firewalla Gold install.

I have PPPoE configured on my WAN and I am connected to the internet and it is pulling in my primary static IP. I have multiple static IPs assigned from my ISP (CenturyLink). Is there a way to add the additional static IPs while setup as the PPPoE connection type? I see how to do it when my connection type is Static IP but not while setup as the PPPoE connection type and it doesn't appear to be doing it on its own.