How to back up Fortigate FG_80F

Hello all, I'm a newbie here as well as a newbie to FortiGate FG_80F Firewalls I have two questions Regarding opening two port in my firewall. First, I want to say that I tried to follow a doc from support How to open a port. The problem is I do not have an IPV4 policy on my firewall so I can't continue with the article from support. 1) I need traffic to pass through Port TCP and UDP 5080 and 5081. How do I configure the Firewall Policy to allow through these ports?

2) And how do I configure nat to consistent nat? And need to make sure SIP and ALG is disabled. 

I would appreciate any help I can get. 

Thank you

Chris