This scheduling process would be only use 2-3 time max per year.
all orders are already in "bank" since they are not really orders.
lets see it like warehouses.
i know how many warehouse (orders) I can move per day (10) even if it has only 1 item in it
I know that depending on how many item there is in one warehouse it take more time so max (80)

of course ill be adding some special add on this but if i can get this going ill be able to set everything else.

david