Serach help in Select-option in WD ABAP

Hi Folks,

I am using WDR_SELECT_OPTIONS reusable component in my Component. I want to attach customized search help particular fild while creating select-option using

wd_this->m_handler->add_selection_field(

i_id = 'IWERK'

it_result = lt_range_table

i_read_only = read_only ).

Can anyone explian how can I attach search help here.

Regards,

Vishal.