How do I save a chart when I have the following message in the helpbox ‘All activities must be contained in a trace. Please continue adding traces until the Trace Start and Trace End drop down lists are empty’?

This message appears as the chart trying to be saved has no vehicle against it. To resolve click on the Traces tab, type in the vehicle details and then click on the Add button. Once a vehicle has been added the chart can now be saved.