The advanced settlement structures are unlocked by meeting specific criteria: * After completing the first quest in Automatron, you unlock the Robot Workbench. * Picking up Fallout 4 magazines, such as Picket Fences and specific issues of the Wasteland Survival Guide. * The Cabot House quest line also unlocks a set of portrait paintings. * located in : (Build → Decorations → Wall decorations → Paintings) * Being friendly to specific factions unlocks flags. * located in : (Build → Decorations → Wall decorations → Flags) * At The Castle, during the quest Old Guns given by Preston Garvey or Ronnie Shaw, you will be asked to build and test fire an Artillery piece. Upon completion of this quest you will be able to build this cannon at other settlements. * locat