To Split an Area
1. Click > > . The Split Area tab opens.
2. Click Placement. The Placement tab opens.
3. Click Define and create a sketch in Sketcher.
4. Click

to create the split area normal to the driving surface or click

to create the split area normal to the offset surface.
5. Accept the default projection direction or click

next to

to project the sketch to the other side or both sides of the reference plane.
6. Accept the default area selected for the sketch or click

next to

to toggle the location of the new surface ID to the area inside or to the area outside of the sketch.
7. Click

.