The SSE is a mod that makes it possible to create a new type of workshop in the game, where you can place your settlers. The workshop will be a place where they can do crafts and other things that they find in the world.

This is a very useful mod for people who don't want their settlers to just be idle and not use the resources that they have in the game. It is especially useful for people who are trying to create their world in the game, and for the people who are playing with the sandbox mode.