Hi Rohit
This is how the system has been designed. If you want to capture some ref, you can do that in SGTXT I believe
Screens do change depending on the SGL and the Category of the SGL (Like Down Payment, Others, etc)
For eg - If you select Down Payment, you will see Profit Center field on the screen. Else, it vanishes., This is pre-programmed in the system
Ajay M