as not normal way of reverse present best way is bind button on throttle not for reverse but for throttle back(f2 default for keyboard), when your throttle lever at idle position press the button and reverse start to grow, when you don’t need it any more, just depress button, and push throttle forward just a little for back to idle, it’s more intuitive and not annoying by freaking way implementation by thrust button
p.s. or i guess fsuipc addon can do normal reverse as it does for fsx/p3d, i don’t sure, but i think new version do it so well as before