set fixed key column position

Hi together,

I am using class CL_SALV_TABLE for displaying ALV outputs.

I´ve defined several key-columns (method 'set_key') and use method 'set_key_fixation' .

Since 'set_key_fixation' apparently only works when (at least) one key column is beeing display

as the first column (position 1 of the ALV output table) I want to freeze the postion of the key column

(...so that you can´t remove the column or move the column to another position)

Any idea?

Thanks vor any help