B2B add on on SAP PI 7.11

We are on SAP PI 7.11 SP10, We want to install B2B add on on our system.

1) I want to know the limitations and differences by installing on B2B add on on SAP PI 7.11, compare to installing on SAP PO.?

In SAP PO, there is good monitoring features of B2B messages, where we can drill down to the message level and can see the message and acknowledgement.

2) If we install B2B add on on SAP PI 7.11 does it have same monitoring features.?

Thanks

Srinivas.