Fill Patterns
        You can create Fill patterns of:
- Depressions (including slots and standard holes)
 - Faces (Closed curves on a face)
 
Components can be assembled to a Fill pattern. For example, a bolt component assembled into a pattern of holes.
Threads cannot be patterned.
You can use the Undo button, Ctrl+Z or Redo button, Ctrl+Y when creating a pattern.