How to set throttle as one axis instead of two?

[tf_neuro]

-Select your throttle axis in the settings interface
-At the bottom of the page, you will see 5 sliders (left) and 2 indicators (right)
- Set the 5 sliders as follows, top to bottom:
*slider#1 = 0.02
*slider#2 = 0.00
*slider#3 = 1.00 <= all the way to the right
*slider#4 = 0.00
*slider#5 = 0.02
- Now the indicators on the right should move almost together, except for 2 small dead zones at both ends, to make sure that the game actually goes all the way down to 0% and up to 110% throttle
(to eliminate the dead zones set sliders #1 and #5 to 0.00)