How to use an external reverse proxy

[Fpsware]

For the longest time now I've been using the Squid package available in pfSense but I'd now like to use an external reverse proxy we have setup in Nginx on a Ubuntu box. I'm unsure how to go about telling pfSense how to do this.

My external box IP is 10.10.10.5.

How and where do I tell pfsense to use this reverse proxy?

[Fpsware]

Solved it myself.  So obvious I overlooked it.

Firewall > NAT > Port Forward

Interface: WAN
Protocol: TCP
Source Address: *
Source Port: *
Dest. Address: WAN Address
Dest. Ports: 80
NAT IP: 10.10.10.144
NAT Ports: 80