Sorting displayed values in SM30

Hi,

I have the requirement where i have 4 key fields in a table say f1 f2 f3 f4 and the requirement is when i go to transaction SM30 & see table contents, it should be sorted according to fields f2 f3 f4.

However, changing the sequence of key fields can achieve the desired result, but since this table has been referred in lot many programs & i don't want to change all those.

Any pointers to any other way to achieve same will be very helpful.

Regards,

Ashish