Tips for Using a Different Axis's Mapping
What is the effect of using a different axis's mapping?
Making this change causes the axis you are changing to perform the commands currently associated with the other axis. For example, if you change the throttle mapping to that of the X axis, you will now be able to use the throttle to perform the commands currently associated with the X-axis.
Some devices allow for mapping an axis to a mouse axis. If you choose this option it is important to move this mapped axis control through the full extent of the range when the game is launched. e.g. if you have mapped a mini-joystick to a mouse X and Y axis then you should move the mini-joystick through the full range of motion when the game is launched. This is required to establish an accurate center point for the axes in order to avoid mouse cursor drift.
Why would I want to change an axis's mapping to another axis's mapping?
You might use this feature if you want to use an axis in a unique manner. For example, you could change the throttle mapping so that you could use the throttle to move forward and backward, rather than to accelerate and decelerate, which is the action commonly associated with a throttle.