Is it possible to either set a cutoff date to hours or set a rule that will reduce the cutoff days to 0 once an item has bookings?
We have night tours that are fine for booking during the day of the tour either up to 4 hours before the tour if they are the first booking (giving us time to arrange a guide) or up to the last minute once there is already a booking and guide allocated.
I couldn’t see a condition option for the number of bookings for an item  – only a condition for number of people being booked in an order.  
Thanks