Nvm, I found the solution. Thanks a lot for your help anyway!

Thanks for the reply. I already checked your asset in the asset editor using the AssetEditorTools Mod, but there were no prefab settings where I could change the amount of rescue workers. I assumed it would be under the vehicle general properties, but the only property showing up there is the "use color variations" property. Do I need to use a different mod to access the prefab setting?

to achieve that I use mod tools to open some prefab setting in order to change the number of rescue person. In the vanilla asset editor you can't change that

Hi, great model as always! Maybe a bit random, but how did you get the vehicle to carry more than two rescue workers? Is there a propertiy field that sets this parameter?