jobs reborn- anyone knows how to set nbt tags with this plugin

this plugins lets you create items with boosted properties, but in the example only has these properties : id,name,lore,enchants,moneyboost,expboost,pointsboost,jobs,levelsfrom,levelsuntil. And it doesn't let you set nbt tags of the items for special properties like make it expensive to enchant. Because i need the item to be unenchantable, but i can't do it.