Options>Control>Highlight Controller
Left side FILTER switch Assigned>Essential>ALL
From the long list highlight the control in LEFT column. In the settings window click on to search (top option) Press the key/ Axis/Slider that you want to assign and VALIDATE. Do this for all other keys/assignments.
Press SENSITIVITY and set sensitivity for all axes.
APPLY F11 on Exit.
If your Controller is like mine was when you programme a FREEFLIGHT and the joystick doesn't respond but the plane takes off anyway... Go to the Toolbar at the top of the screen, select the Pilot's Cap AI CONTROL and scroll down to CONTROL AIRCRAFT and SWITCH OFF.
That should do it. Hope it works for you.
Regards,
William