Hi,
It will not work that way. If you want to add DBs from second B1 server you need second Event Sender service and connect it to second DB server. Without it you will not receive any events from those DBs. If don't need it then you can add companies manually in SLD.
You don't need another SBO-COMMON entry in SLD.
Adding new entry to sbocommon.xml with id that contains 'sap' is risky in my opinion.
Kind Regards,
Szymon Lipnicki