Constructed a 4x4 adventure ride, can't add more vehicles than one - help!

[AirToob]

I have a viable station and track, but I can't find a way to have more than one vehicle.

The incoming track approaches the station via an airlock that is too close behind the station, maybe?

I can't remember where you set up the number of vehicles at a safari station, once it is in place...

[grampers62]

The ride must be closed to change the car number and that can be found in the ride's operations tab

[AirToob]

Thanks again!
With only one station I was trying to add cars at the station, rather than the ride...