How can I spawn a bus in the track creator

Hi, i'm finally back after a long time, and some new things have been introduced, some feature that caught my attention was that i can now spawn traffic, i made a route but the bus doesn't appear, how can i make it appear?? I hope you can help me with that, it was supposed to appear in my Mini Outrun track

happy birthday LIzzay

all mario and koopalings wish you a happy birthday

Mod edit : Please refrain yourself from reviving an old topic.