How to create/generate GET_P for value attribute ?

Hi,

i have value attribute which is not showing any options to generate Get_p or Get_v methods...

I try to copy the standard methods IF_BSP_WD_MODEL_SETTER_GETTER~_GET_P_XYZ from context node class...but it is not copying ...

is it possible to create Get_P or Get_v .

pls provide some inputs how to do it.

Thanks,

Venkat