In the Circulation preferences chapter, under StaticHoldsQueueWeight, HoldsQueueSkipClosed and RandomizeHoldsQueueWeight (https://koha-community.org/manual/latest/en/html/circulationpreferences.html#staticholdsqueueweight-holdsqueueskipclosed-and-randomizeholdsqueueweight) "you should list the the libraries that" the the -> the