void pointsAdded( int theSection, int thePoint, int thePointsCnt=1 );
void pointDataChanged( int theSection, int thePoint );
void pointsRemoved(int theSection, int thePoint, int thePointsCnt=1 );
void pointsAdded( int theSection, int thePoint, int thePointsCnt=1 );
void pointDataChanged( int theSection, int thePoint );
void pointsRemoved(int theSection, int thePoint, int thePointsCnt=1 );