Actually, the part of the manual I took that from was for in network mode. I think it's the NW3 menu. I'm not running active yet, so I haven't used network mode.
It should work though. I think it's the menu where you adjust the xover slopes by moving the knob left and right. To mute your tweets (front/high) for example, you'll go to your high/low pass filter menu where you can adjust the slopes left and right, and hold the multi-control knob DOWN, not in, but down. That should work. If not, maybe try holding it in. You'll figure it out. Just play with it. You can dl the manual off Pioneer's site in pdf form.