Cut Holes
Use the Cut Hole tool to generate holes in surfaces/2D mesh/FE geometry using various kind of shapes.

- 
                From the 2D ribbon, click the Cut
                        Hole tool.
                

Figure 1. - Optional: 
                On the guide bar, click 
 to define options for rebuilding mesh after holes are cut.
             - Select the surfaces or elements on which to cut holes.
 - 
                Select the hole shape from the drop-down menu on the guide bar.
                
Option Description Circle - Click and drag to draw the circle.
 - Adjust the radius in the microdialog.
 - Click Add Circle.
 
Curved Hole - Select two or more points to draw the curved hole.
 - Adjust the first and second radius in the microdialog.
 - Toggle the Rounded ends icon to control the shape at the ends of the curved hole.
 - Click Add Curved Hole.
 
Polyline - Select two or more points to draw the polyline.
 - Click Add Polyline in the microdialog.
 
Rectangle - Click and drag to draw the rectangle.
 - Adjust the length and width in the microdialog.
 - Click Add Rectangle.
 
Slot - Click and drag to draw the slot.
 - Adjust the length and the first and second radius in the microdialog.
 - Click Add Slot.
 
 - 
                Continue creating as many shapes as necessary.
                Tip:
- Click 
 in the microdialog to reposition the shape. - Shift + left-click to remove a shape or a curve point.
 
 - Click 
 - Click Cut Holes on the guide bar.