The Chest utility tab is used for editing the contents of [storage containers].
The first column is the quantity, the second column is the [prefix] and the third column is the item.
Ambiguous prefixes are differentiated as (A)ccessory, (C)ommon weapon or (R)anged weapon prefixes.
Save saves any changes you've made to the contents of the chest, but it does not save the world! Cancel discards any changes you've made.