Currently you have to select apply minimum load charge and select a table to have these charges apply. We have different tables for different zones. Charges are applicable to our cost to deliver to each zone. Currently you can only select a sundry charge in the zone setup. Why not create a field that links a minimum load charge table, so it applies charges automatically. There are many of occurrences of forgotten/wrong minimum load charges on orders.
We can create a field in the zone table for minimium load charge, and if the charge exists in the zone, overwrite the existing min load charge table on the order that comes from the customer/project.