How to change the drop down list for Opportunity Item STATUS field

Hi Experts,

We have implemented SAP CRM SALES 2.1 in our landscape.

1. In Opportunities we have STATUS field for Header and as well as Item.(This is SAP Standard field)

2. For this STATUS field its showing the drop down list.

3. At header level and Item level also its showing same list of values.

4. I want to display item STATUS drop down values at item level from TJ30 table .

How to display that values, can any one please help me in this.

Thanks and Regards,

Suman