A 3Kb .ESL mod with no other mod or dlc requirement and compatible with all languages.
You can install and uninstall at any time.
Now you can go, assist, make defenses and give The Independence.
In a settlement build Special->The Independence Switch
A independent settlement can work alone without Preston/Castle calls.
You can sleep, barter, go a doctor…all things in a independent settlement.
If you need to build something, just make the settlement dependent again using “The Independence Switch”.
Caution: avoid using in key settlements before main quest if you are going to follow the Minuteman path (Castle and Sanctuary)
For a complete solution I recommend using: “SKK Workshop Ownership Utilities” which contains this functionality and many others.
All Thanks to SKK and his effort to provide clear and clean documentation about the creation kit, especially in settlements mods, without him nothing here would be possible and the community would be poorer.