Feature description

Currently, when you put an item in your offhand slot, create a kit in-game using /kitcreate and then run /kit <kit> to recieve the kit, the item does not appear in your offhand slot, but in the first available slot instead. Im suggesting to add a toggleable option that, when enabled, would automatically put the item in the offhand slot (as long as the item was in offhand slot when creating the kit of course).

How the feature is useful

The feature could be quite useful for kits containing, for example, shields. As most players would probably want to put them in their offhand slot, I think they would appreciate receiving the kit in this state and not having to move their shield there every time they get the kit.