0CRM_SALES_CONTR_I Data Source Fields

Hi,

I can see that there are some fields in Extract structure CRMT_BW_SALES_CONTRA(OCRM_SALES_CONTR_I) such as INSTALL_AT ,INSTALL_AT_LIST ,RESPONS_AT_PARTNER ,END_CUSTOMER etc but they are not visible at Data source level,

I can see that these fields available are hidden by SAP by looking at table  ROOSFILED as below,

so Just I wonder whether this can be changeable and enbale to extract into BW ?

Appreciate your quikc response , Thanks inadvance.

BRK