ESS Configure steps in ECC 6.0

Hello ESS experts,

I am working on Functional ESS upgrade from 4.6c to ECC 6.0 (EP 7.0). We have installed all the required BSP's. Our company want to keep all the functionalities as they used in 4.6c ESS in Portal, from 46c to ECC 6.0 there is bit difference in IMG configure. Can anyone advise me how should I follow from backend R/3 to configure in IMG as per ESS requirement. Is I need to configure whole ESS configuration in ECC 6.0 in order to get those functionalities. I am comparing 46c staging to ECC 6.0 to make some analysis. Any upgrade documents.

Thanks,

DV