1. / 5. I had it set up that way previously, then i read this: https://www.nexusmods.com/fallout4/mods/32193 AFAIK it does the same thing but cleaner as it tags the new workshop so it can be differentiated by other mods etc. At least that s the impression i got from it. Both ways seem to work but dont solve my problem as this guide is mostly made for an outdoor settlement. 2.Doesnt seem to be required at least by any guide i ve seen. Ownership works just fine. I did change it from ownedbyplayer to enableautoownership in the script though - supposedly it is cleaner/better that way. You get ownership as soon as you enter the build area. 3.The settlement itself works just fine, goes to 80% as soon as i put in someone as all the basics are already set up and linked. 4. / 5. AFAIK that is only for encounters/invasions that are disabled, same with clearable as there are no mobs to clear. 6. Wouldnt do it any other way. I start from a clean save every time, the big ass disclaimer in my mod is there exactly for this reason. If you checked the mod, you would see it has all that, NPCs sandbox in it just fine. As for the door i now set it to require terminal but it only works for the first time, after that the player can just use it normally. I figure i could relock it with a script, but can you even do that to an open door? The other way would be to turn the door into an animated static like the unusable metal doors but i have no clue if that would even work. Now for the kicker: I managed to solve my first issue. How? By making the thing error in CK. It just werks! In detail: i opened the LAIR DLC, vault 144 mod and my esp in xedit and then compare-messed with the location and mapmarker till the fields were filled out in the same manner. Specifically ACEC, ACID fields in location and XEZN, (XLRL - found this in the vault 144 mod, might be the key) in the worldspace mapmarker. Throws out these errors (but so do quite a few locations in the master): MASTERFILE: <CURRENT> LCTN 'INSH_Location' (02003947) Special Ref 'INSH_Marker' (02005023) is not in the Special Ref data. MASTERFILE: <CURRENT> LCTN 'INSH_Location' (02003947) Warnings were encountered validating unloaded ref data for Location 'INSH_Location' (02003947). It seems you need to "fool" the game to get it to show supply lines and settlement data for an interior settlement. Would still prefer a cleaner way so i ll keep looking into this but at least now i know where the solution is for this issue. NPCs still wont move their butts in and out though. Probably pathing or another similar reference black magic thing seeing as my companions do follow me in and out just fine.