FI - Add New Field at FBL3N

How to add customized field at report FBL3N? Add the news fields in structure RFPOS and RFPOSX by APPEND structure Run the report RFPO...

Create Traffic Light Indicator on ALV

form  F_TRAFFIC_LIGHT  .   gs_alv - lights  =  '1' .     "Color red   gs_alv - text  =  'RED SIGNAL' .    APPEN...