A scenario copies the current bookings so you can test a staffing option without changing the live schedule. Name the option, make changes inside it and compare its capacity or economics with the baseline. A scenario's result is useful only if you can explain which assumptions changed.
Desk Staffing keeps scenario bookings separate from live bookings. The people and role requirements remain shared evidence. Choose the scenario explicitly when editing a booking or building a report. If you rebook the baseline by mistake, the comparison no longer answers the original question. A copy initially has the same result as its source; you need a real proposed change before it can support a decision. Retain a baseline table alongside the option so the manager can compare the same week, population and commitment status rather than two unrelated figures.