Article type WERT - Uncheck Price required field in POS tab

Hi all,

We are working on SAP IS Retail environment 4.7

There is a client requirement where for a article type WERT , Check box needs to be editable for field Price required ( WLK2-PRERF) atPOS Tab

Present situation is that this check box is greyed out and is always checekd as price required for all WERT articles at POS tab.

Checking the below link,I understood that this is done by default by SAP for all WERT article types

http://help.sap.com/saphelp_470/helpdata/EN/12/084890470311d1894a0000e8323352/frameset.htm

Is there any way we can make this check box editable for field price required for WERT article types ?

P.S.  - We already know the ABAP Debug workaround for this but are finding for configuration way.

Regards

Alpesh K