A standard Joystick should have at least four axes: X, Y, Z & Slider and are associated with the three movements of the aircraft: pitch, roll and yaw while the Slider is associated with the Thrust.
Each of these axes performs only the task it was associated with.
If you only have one Thrust you can use it for single engines. If you have multiple engines you must associate them all to the same Thrust Lever or buy additional USB devices such as the CH Quadrant and associate the axes as you wish, but each axis does only one task.
Instead in the Thrustmaster TCA Quadrant, it seems that they want to use the Thrust Lever for three quarters as Thrust and for the remaining quarter as Reverse and this is what convinces me very little.
Furthermore, when you activate the Reverse you also have to give full throttle and this is another extra task that the same axis must do!!!
In all honesty I ordered it and I hope it arrives soon because I like it as an object but I think it will never work as it should.