Airbus addon throttle

anyone having TCA addon throttles assigned to DC6 and do you have troubles or is it all working?
i.e my park brk doesnot work etc.

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i have trouble with the assign of 4 engines to two handles.
i have throttle 1 and 2 (0-100%) assigned to l axis x
3 and 4 (0-100%) to axis l axis y
but it dont work, needles move everywhere.
any idea what I do wrong