gfw graph - label for data series

Hi,

I use SAP 4.6c

Is there possibility to delete form grapfh value label for data series or at least leave there only name of serie?

Is it connected with attribute co_label_auto from class cl_cu_values or with attribute CO_LEGEND_ON_DEMAND from CL_CU_DRAWING_AREA?

There is attribute CO_LABEL_TYPE in CL_CU_VALUES but I don't know with wich value it appear.

Can someone help me with it?

Regards,

Joanna