“what QB software do I need to buy to add 2 more computers to the one computer that is now running QB? I have QB pro w/Payroll 2015 installed on one computer, I want to add 2 more computers that will have QB access. I am networking all together. Do I buy a 2 user QB 2015 software program, or 2 single programs? What's buying a license for multi-users mean?”