problem with ALV mehtod copy_row

Hello all,

i would like to realize an ALV with the function of copying a row.

i copied the example BCALV_EDIT_04 and commented the two lines that excluded the copy function. when i start my example i select a row, i push the button, but none of the fields are ready for an entry.

what's wrong with my example, what did i forget?

many thanks for your help.

Robert