ok so would I need to put in startup code?
+traincar.population​

You could certainly try. But you might have to put it pretty early. Maybe OnServerInitialize (no d).

I don't even know where that is. lol

Merged post

I just sent message to Tempest Hosting to see if they can put it in the right place.

Oh, sorry, I was referring to using a plugin to set the convar. Some convars need to be set late, so sometimes people use plugins for that. I'm not sure which convars fit in that category. I was suggesting to write a plugin that uses the OnServerIntialize hook to set the convars (as a test).

Probably not. Those are code names I use in Automated Workcarts, not necessarily the prefab names. You can use a plugin such as Prefab Sniffer to search prefabs by keyword.

I doubt that plugin would work for your use case. I'm pretty sure it would cause the Automated Workcarts to be despawned.