points:
  mirror:
    ref: matrix_right_top
    distance: U
  zones:
    matrix:
      columns:
        left:
          rows:
            bottom.asym: source
            top.asym: clone
        right:
      rows:
        bottom:
        top:
    other:
      anchor:
        ref: matrix_right_top
        shift: [100, 100]
      # default mirror object, ref = [0, 0], distance = 0
      mirror: {}
      columns:
        left:
          rows:
            bottom.asym: source
            top.asym: clone
        right:
      rows:
        bottom:
        top: