MikroTik router board 1200?

Hello,
I have a new mikrotik router-board 1200 i configured the first port as an input for the internet from a VSAT modem, i set it as a DHCP, and the second port is out for computers, but the problem is i want to put the Video conference on the third port and i want to set a priority for that port…please help can i do that by winbox? and how?

what is this “video conference”, is it some kind of device? where does it need to connect, to the internet? normally you would either bridge those ports 2 and 3 to make the video conference and “computers” in the same network, or give the “video conference” a separate address in a different network. depends where you want to connect it.