Usage of modes of interaction of circuits with each other

1. Create a type layer shape.
   
2. Select a circuit of cutting off of a new layer.
   
3. Select one of tools for creation of figures.
   
4. On the panel of options click on one of the buttons defining a mode of interaction of circuits: Add to shape area (to Add to figure area), Subtract from shape area (to Subtract from figure area), Intersect shape areas (to Intersect areas of figures), Exclude overlapping areas (to Eliminate the general areas of figures) - fig. 16.83 see.
   
5. By means of the mouse construct a new figure over existing which or expands its boundaries, or causes removal of a part of the first figure (fig. 16.84).
   

Fig. 16.86. The Same layer after visible and invisible areas exchanged in places