Steema Central

I want to change the title in runtime.
But I can not find corresponding method in class CTChart.
Could you tell me how to do it, or it is impossible in MFC?

#include "Titles.h"
#include "Strings.h"

m_Chart1.GetHeader().GetText().Clear();
m_Chart1.GetHeader().GetText().Add(COleVariant("A New Title"));