Hi Murali ,
you can find particular field group to particular field , like example
Step # 1
- T-code : MM03
- Material Type : ERSA
- View Name : Accounting 1
- Field Name : Moving price
- Screen Field : MBEW-VERPR ( F1--->Technical Information )
Step # 2
- T-code : OMSR
- Click On Field Name button
- Enter Screen Field MBEW-VERPR
- Continue
- you can find field selection group number like "37"
Regard's
Smruti