modifier = {
  description = "A slot on the playing field"
  field = "slot"
  display = "Slot"
  class = "Slot"
  dependency = []

  blocks = {
    data = {
      fields = [
        { name="coord" type="float3"  default=[0, 0, 0] }
        { name="auto_naming" type="boolean"  default=false }
        { name="field" type="id32" editor="entity" default="" }
      ]
    }
  }
}