Auto change in the sequence number in a grid in peoplesoft

Hi ,

I am new to peoplesoft and have a concern with a requirement.

I have a requirement where in I have the following fields in the grid 1. Fields Order 2. Field Name.

Whenever I keep on increasing the number of fields in the field name the field order should increase in the same manner; likewise the field order should decrease we decrease (delete) the field name in the grid.

Please find the screenshot for better understanding:

I guess we need to write the code in row insert and row delete.

Kindly advise for the same.

Thanks in advance,

Praveen