Contents Designing » Editing » Fill Tool » Using the Fill Tool » Any Combination of Sketch Curves, Layout Curves, Surface Edges, and Solid EdgesPrint page Any Combination of Sketch Curves, Layout Curves, Surface Edges, and Solid Edges Example: When you select any combination of sketch curves, layout curves, surface edges, and solid edges that lie in the same plane and form a closed loop, Fill creates a planar surface. « Faces and Edges or Sketch CurvesMeshes »