That option is right in the window you posted a jpg of. Where it says "Incoming TCP listen port" change it from 6881 to whatever port you want.

With Azureus you only need to open ONE port per computer on your router for BT use, not all of ports 6881-6889.

BTW, you don't need to hide the IP addresses in the capture of your router screen. Those IP addresses are internal to your router's network and won't be accessible by anyone on the net.