F4 event on a alv cell, using 'REUSE_ALV_GRID_DISPLAY_LVC'

Hi experts,

this is my field category for my cell...

CLEAR it_fcat_ln.

it_fcat_ln-fieldname = 'AUFNR'.

it_fcat_ln-outputlen = 13.

it_fcat_ln-tabname = 'data_tab'.

it_fcat_ln-reptext = 'Network'.

it_fcat_ln-edit = 'X'.

it_fcat_ln-f4availabl = 'X'.

APPEND it_fcat_ln TO it_fcat.

and I use the FM 'REUSE_ALV_GRID_DISPLAY_LVC' to display my alv...

now when I run my report and click on this column, it shows that there is a search help for the column, but when i open up the search help(F4) it doesn't go back to the code.

How do I get it to go back to the code so that I can use the search help 'AUKO' and display the data...

Hope this is clear...

Thanks

Mthunzi