Define default UOM for Selling document flow (Sales Order, Delivery Note)

My stock has weight values in Gram. I want the delivery note to print the total weight, in KG. How would I go about this? Where would I define the default weight unit of measurement to be defined?

Check the weight UOM in the item master’s inventory section

Yes, I have grams over there for my items. The ratio to KG is maintained. How do I get my delivery bote to present weight as KG per default?