PXE setup in 60F Fortigate

I am very new to Fortinet and PXE booting so please forgive any incorrect info on my end. I am working to setup Fog Project within our systems so I can boot devices with PXE. I haven't been able to get the Fortigate 60F setup to allow/pass these requests to the Fog Project machine. Once of my biggest issues is I can't seem to get option 67 set anywhere within the interface. Any suggestions?