In any BVEs and OpenBVE, you cant change the track, its about
you choosing the route, if you chose the route is to Pasir Ris then
the train will stop at the left platform, if you chose the CGL
route then it will stop at the centre platform, if the route is
from Pasir Ris then the train will stop at the right platform.
Edit: Grammer and
Spelling
To add on, its all about the coding whether to
determine where the trains go and to stop at stations. For example,
it is possible for trains to go at eastbound track for westbound.
But I have tried to change the coding at the point where reaching
AMK to go to southbound track instead of middle track at JUR-BSH
route and failed! But it will be nice to have to have switches in
OpenBVE like in real life!