Apply tension to a seatbelt for testing using the tensioning option.
        
            The tensioning option in the Seatbelt entity context allows you to simulate the
                tensioning process on a seatbelt. You can define the tensioning force, contact
                friction, and the pulling of the belt (start or end). 
        
        - 
                Right-click the appropriate seatbelt entity and select
                        Tensioning from the context menu.
            
- Optional: 
                Set options as necessary by clicking the  menu. menu.
- 
                On the guide bar, click the
                        Tension button.
                This will start the tension process. A status bar in the lower left corner informs you of the evolution of the
                    process. 
- 
                From the microdialog, use the Cut
                        End slider to cut the tensioned belt at the initial end or start
                    location.
            
- 
                Click Update Nodes to update the seatbelt with the shape
                    of the selected simulation step.