ETS2/ATS Tutorial: How to make a model for the map editor!

Someone asked me to make a house for the editor, I would be there a while making that, so i have comprised and just done a simple cube. The process is the same for any model. I show you how to make a simple model from scratch, from setting up folders, the work in Blender, fixing a mistake that you may run into and finally the finished model with collisions and shadows in the editor. I am using Blender 2.93 for this.