Compound Chenille is used with Complex Fill is used to automatically digitize objects with offset borders. Automatic offsets consist of 1-3 chain runs around the shape, 1-3 moss runs of a lower height and a fill of Island Coil, Perpendicular Fill or Straight stitch.
Note Input A, B and C do not produce automatic borders for Chenille objects so they need to be added manually but these manual objects cannot be scaled to a large extent, because the gap between the borders will change.
Use Complex Fill for large irregular shapes.