Port forwarding on MikroTik rb2011uias-2hnd-in

Hello guys. I got this router.. I want to play a game on steam called : The forest (it’s still in Alpha mode) and I want to play with friends and also on servers but I get a message like this when I try to host a game or to join one : We were not able to automatically forward ports in your router. You need to manually go into your router and forward port 27000 to your computers LAN-ip adresses.

I really have no idea how to do that. I’ve looked into the ui , but I get lost in there. If someone can help me I will be very thankful ! Thank you in advance , David Rafael.

Go to IP > Firewall > NAT
Then follow my thread..

http://forum.mikrotik.com/t/all-traffic-redirect-to-my-webserver-on-port-80/84075/1

Use only first two images. Replace port 80 from my thread with your port.