思いついたので形にしてみた
adminコマンドで権限を得たうえで

/spawnitem ironbroadsword 1 '{"category": "LongSword","level": 10,"price": 5000,"primaryAbility": {"baseDps": 16,"fireTime": 0.8,"stances":
{"fire1": {"twoHanded": false},"fire2": {"twoHanded": false},"fire3": {"twoHanded": false},"preslash1": {"twoHanded": false},"wait1":
{"twoHanded": false},"wait2": {"twoHanded": false},"windup1": {"twoHanded": false},"windup2": {"twoHanded": false},"windup3": {"twoHanded":
false}}},"rarity": "Rare","shortdescription": "Iron Long Sword","tooltipFields": {"altAbilityLabel": "","altAbilityTitleLabel":
""},"twoHanded": false}'

これをコピペしてenterすれば、カーソルの位置にそれっぽいものが出る
本来はstarcheatとかでデータいじるんだが、簡易的にコマンド貼り付けもできなくはない