Im not so sure that OAT use FS for selection tests, so guess that be a no. The Joystick they used for apptitude was a Logitec one, ????? 3 it was, it was the most sensative joystick i ever have used, its only £19.99 too. I thought they use/d PILAPT for those tests. FS Can be set up so you fly an approach through boxes on the ils, thats similar to one of the tests, errr, guess you can simulate the deviation by setting some mad and random winds and trying to fly a dead on ILS approach.
there is PILAPT Prep that most use to practise or CockPit Web's Tests are pretty good too.