How use single community builder user database for different sites?

Hello!
Sorry for disturbing, but i have a little problem and hope you can help me solve it.
I have site with installed Comunity Builder and big registered user database on it, but for now i need to create another site (on-line shop on virtuemart), its based on same hosting but have different adress. So main question, can i connect new site to user database from previous site (of course i install Community Builder on new site). The better way if i can use single community builder user database for different sites. So how i can do this, is it possible?

Not particularly. CB doesn't support multi-site. I suppose you could use CB Auto Actions to execute database queries on your other site and insert a user into the database, but you'd need to handle ACL inserts and everything too. There are Joomla multi-site extensions, but I don't know if they work with CB.