How to install and play open rails now

Get Portuguese Trains for Open Rails and Train Simulator here:
https://www.comboios.sergiopinto.com.pt/

Game Basic Controls:
W: gear to fowards
S: gear to Backwards
E: increase the gear 1,2,3 etc./shift E decrease the gear
D: Throttle Increase
A: Throttle Decrease
Ç: Train Brake Decrease
º: Train Brake Increase
L: Light
1,2,3,4: View Mode