Where this comes in handy is that you can sort the Ash of War Duplication menu by pressing the left stick in then selecting Item Type. Doing so will display all Ashes of War in the order and groups that they are listed here which is super-handy as you don't have to unequip any. ...
Ashes of War are a system in Elden Ring to change your weapon's Affinity and apply a unique Skill. Here's what you need to know about Elden Ring's Ashes of War.