https://forums.eagle.ru/showthread.php?t=224205&highlight=JHMCS+Controller+Bindings%26quot%3B%26quot%3B   
ok I found this, it's very helpful. it    
I could add the last line in the ..DCS World\Mods\aircraft\AV8BNA\Input\AV8BNA\joystick\default.lua file:     
 
join(res.axisCommands,{
{combos = defaultDeviceAssignmentFor("roll")  ,  action = iCommandPlaneRoll		   , name = _('Roll')},
{combos = defaultDeviceAssignmentFor("pitch") ,  action = iCommandPlanePitch	   , name = _('Pitch')},
{combos = defaultDeviceAssignmentFor("rudder"),  action = iCommandPlaneRudder	   , name = _('Rudder')},
{combos = defaultDeviceAssignmentFor("thrust"),  action = iCommandPlaneThrustCommon, name = _('Thrust')},
{action = iCommandPlaneCollective,  name = _('Nozzle Angle')},
{action = iCommandWheelBrake,		name = _('Wheel Brakes')},
{action = iCommandLeftWheelBrake,	name = _('Wheel Brake Left')},
{action = iCommandRightWheelBrake,	name = _('Wheel Brake Right')},
{action = iCommandPlaneThrustRight,	name = _('Nozzle STO Stop')},
--HOTAS TDC
{action = iCommandPlaneSelecterHorizontalAbs, name = _('TDC Slew Horizontal')},
{action = iCommandPlaneSelecterVerticalAbs	, name = _('TDC Slew Vertical')},
[b]-- internal lights
{action = int_light_commands.Knob_Instr_Lights, cockpit_device_id = devices.LTINT, name = _('Instruments Lights Knob')},[/b]
})     
the only strange thing now is that DCS is considering my middle position as 0% (instead of 50%), so it's using only half axis.... I have to setup axis curve in game to go from 50 to 100