Blank Row in ALV Grid Display

In ALV Display I want to have a <u>BLANK row</u> everytime the value of 'Cross Company Code Document Number' (BVORG) changes.

Is there a way to use the Sort Option of "REUSE_ALV_GRID_DISPLAY" to do this? Or is the only possible way is by modifying the ITAB that is being passed for display?

If ITAB is the only method to do it then how should I go about making this happen?

Thanks-

Rohit.