In 1 hour I can comfortably create 2-4 full lighting setups, however, I've found that 2 or 3 is the optimum number with multiple outfit changes per lighting setup.
If, however, you wanted the same lighting setup for all images, we can create slight variations, heavy or lighter shadows, or perhaps even gels in our longer 3 hour+ sessions.
Please note, and this is really important, we will never rush to try and get 4 lighting changes, if this happens organically then that's great but it should not be assumed that it will definitely happen.