Change DNS on WR44V2 for PPP connection

Can someone tell me how to change the DNS servers for a Verizon PPP connection ??

I have been so far unsuccessful changing from Verizon using :

Configuration/Network/Interfaces/Advanced/PPP/Use DNS server if not negotiated

Configuration/Network/Interfaces/DNS Servers/DNS Server/DNSSEL 0


ppp 1 DNSServer x.x.x.x
ppp 1 secDNS x.x.x.x

Where does one set DNS servers for PPP connections to override Verizon then ?

Thank you