How to set CalenderEvent's title getting from a customized EventEditor field

[Ahuga]

I customized the EventEditor fields in the following way:

eventDS = new DataSource();  
DataSourceSequenceField eventIdField = new DataSourceSequenceField("eventId");  
eventIdField.setPrimaryKey(true);  
  
DataSourceDateField startDateField = new DataSourceDateField("startDate");
DataSourceDateField endDateField = new DataSourceDateField("endDate");  
        
eventDS.setFields(eventIdField, startDateField, endDateField);  
eventDS.setClientOnly(true);  
        
CalendarEvent[] eventsArray = new CalendarEvent[this.calendarEvents.size()];
        eventDS.setTestData(this.calendarEvents.toArray(eventsArray));
calendar.setDataSource(eventDS);  

		
eventsArray = new CalendarEvent[calendarEvents.size()];
calendar.setData(calendarEvents.toArray(eventsArray));  
calendar.setAutoFetchData(true);  
  
//custom fields below  
TextItem authorValue = new TextItem();  
authorValue.setName(AUTHOR);  
authorValue.setTitle("Author");
authorValue.setWidth(60);  
authorValue.setDefaultValue(DEFAULT_USER);  
authorValue.setColSpan(4);

TextItem weightValue = new TextItem();  
weightValue.setName(WEIGHT);  
weightValue.setTitle("Weight");
weightValue.setWidth(60);  
weightValue.setDefaultValue(200);  
weightValue.setColSpan(4);

// hides Default-Feld name
TextItem nameField = new TextItem("name", "Name");
nameField.setVisible(false);
nameField.setDisabled(true);
        
TextItem descriptionField = new TextItem("description", "Description");
descriptionField.setVisible(false);
        
calendar.setEventEditorFields(descriptionField, nameField, authorValue, weightValue);

Now I would like to have the value from the "authorValue"-Field as the title of the CalendarEvent instead of the default Name-Field which is hidden.

How can I manage this?

Thanks for your help.

(smartgwt-2.4.jar)