UAVCAN servo commands without servo devices

Is there a way for the Ardupilot, configured as ArduPlane, to send servo commands on the CAN bus without having servo devices on the CAN bus? I’m planning to have a Teensy board to capture the CAN bus commands. I have configured the CAN_D1_UC_SRV_BM = 255 but I don’t see any servo related commands on the CAN bus. My CAN bus is functional as I see GPS info on the CAN bus.