Split with Surfaces
Use the Split/Stitch tool to split surfaces and solids using surfaces.
Note: Splitting FE geometry surfaces with other FE
                geometry surfaces is supported; however, the extend trimmer option is not.
        - 
                From the Topology ribbon, click the Split/Stitch tool.
                
Figure 1. 
 - 
                From the guide bar, select
                    Split.
                Tip: You can use the keyboard shortcuts underlined in the function name to select a function.
 - From the guide bar, select Surfaces or Solids.
 - Select geometry.
 - Optional: 
                On the guide bar, click 
 to define split
                    options.
             - On the guide bar, select Surfaces.
 - In the modeling window, select the surface(s) used to split.
 - Optional: 
                Review the split sections.
                Restriction: Only available when splitting solids.
 - 
                On the guide bar, complete one of the following:
                
- Click 
 to apply and stay in the tool. - Click 
 to apply and close the tool. - Click 
 to exit the tool without applying. 
 - Click 
 
