The installer checks whether VCS license keys are currently in place on each system. If license keys are not installed, the installer prompts you for the license keys.
See Checking licensing information on the system.
Enter a VCS license key for north: [?] XXXX-XXXX-XXXX-XXXX-XXX
Do you want to enter another license key for north? [y,n,q,?] (n)y
Enter a VCS license key for north: [?]
Do you want to enter another license key for north? [y,n,q,?] (n)XXXX-XXXX-XXXX-XXXX-XXX
XXXX-XXXX-XXXX-XXXX-XXX successfully registered on south
Do you want to enter another license key for south? [y,n,q,?] (n)