Yes this does negate the channel 8 knob when this is activated:

Use the ailevator function, designed for just this purpose.

Plug servos into 2 and 8
Go to AILEVATOR
Make the function active

Test your elevator movement. If one is going the wrong direction, reverse the % for that servo (ie -100%).

IMPORTANT READ ME: Do you want your elevator servos to also act with your ailerons? If NOT, you must reset the AIL3 and AIL4 numbers to 0.


I hope you find this information helpful. You can also reach our Futaba support technical team at 217-398-8970, or via fax at 217-398-7721.

Sincerely,
Krysta
Lead Futaba Customer Service and Programming Technician
Futaba Service Center USA