You may have noticed that up until now we have not worried about the directions of the paths. Once the part is complete the paths can be automatically classified in one go. (Note: a quick way to check that the paths are generally in the correct directions is to look at the part icon. The part material is gray filled while the cut out areas are white.)
1Classify the paths by selecting the 
Classify Path command- this automatically determines internal and external paths and orients them accordingly.
2Home without saving.