the WCS is an extra throttle for the FCS for a so called "hands on throttle and stick" setup. i think that the HAT buttons on a FCS are implemented as threshold values of one of the Axis of the 2nd stick, thats why you sometimes have to change 3 and 4.

as "ripa" mentioned, throttle, hat and 4 buttons do work well simultaneously in dosbox with any usb-joystick connected. but in contrast to "descent" the majority of games with advanced joystick support (FCS or Flightstick) lack support of one of these features. i think this has one of the following …