i want to use upnp + random ports

hey, is there any way i can set up comodo to allow utorrent to set up upnp port mapping, and random ports for every reboot, ie just a blanket allow for all connections going to/from utorrent. I tried setting up a rule like this on the applications page but utorrent still couldnt do it? thanks… btw comodo is so much nicer to use than symantec was