Anyone Know where i can Find A tutorial on just Making Walls, Doors and Foundations??
You can start making your own mod by following https://docs.ficsit.app/
We reccomend to learn Unreal Engine basics first cause satisfactory modding heavily depends on it.
If you then were able to create the sample mods or so… then you could ask the modders in the discord server to further get information about how to do f.e. wall snapping.