schematicbuild:
  type: world
  events:
    on player places i@buildchest:
    - if <schematic[build].cuboid[<context.location>].has_town> {         
      - if <[schematic[build].cuboid[<context.location>].cuboid.get_blocks].location.in_region> {
        - narrate "You cannot place that here!"
        - determined cancelled
        }
        else {
        - schematic load name:building 
        - schematic paste name:building <context.location> noair
        }
      }
      else { 
      - narrate "You cannot place that here!"
      - determined cancelled
      }