LBWE : Logistic cockpit: Help needed

Hi All,

I wish to know whether you have any documentation (pdf) etc available to understand the scope of LBWE transaction.

For example, I would like to know

1> How do I change the datasource/underlying prog to add/change/delete some field from the standard delivered logistic datasources for Sales, delicery and billing(2LIS_11, 2_LIS_12 and 2LIS_13* ).

2> All I know is trandsaction RSA5, RSA6 enables the data source and data extraction to BW. I am not quite getting the point for the transaction LBWE.

Thanks

Arunava