Rafael,
Simple answer is NO. It is going to follow the commands from the radio, if the trim is linked the RX will pass that data. If you do not desire this feature you must disable the trim function in the mix. You can program the mix in the RX instead of the radio but it will follow the trim position from the radio. I typically set this up just as described, Nose on rudder channel, rudder mixed with trim function disabled through the radio.
Todd