I need to make an elevator with one shaft which serves 3 elevator cars. I searched everywhere but couldn't find anything related to my problem and I feel like I'm missing something easy.
Azbogah,
you can place as many lifts in a shaft as you require, you will need to model the shaft walls using the wall tool with doors (or empty openings) placed to match the size and location of the lift doors, you will also need to turn off 'Show Elevator Shaft' in the Elevator Object