# Per-Level Books

Starting 9.17.0, it is possible to change items on each level of a specific enchantment. Similar to how [groups can change this](https://ae.advancedplugins.net/groups#per-group-enchantment-books). It's very simple to do:

Here is an example with `hasten` enchantment, where you can for example just change the `custom-model-data` or you can even change the whole item:

{% code title="enchantments.yml" overflow="wrap" fullWidth="true" %}

```yaml
hasten:
  display: '%group-color%Hasten'
  applies-to: Tools
  type: MINING
  group: SIMPLE
  applies:
    - ALL_PICKAXE
    - ALL_SPADE
    - ALL_AXE
  levels:
    '1':
    # WE CAN SEE HERE THAT ONLY CUSTOM MODEL DATA IS CHANGED
      item:
        custom-model-data: 99
      chance: 15
      cooldown: 3
      effects:
        - POTION:FAST_DIGGING:0:40
    '2':
    # HERE, MORE PARAMETERS OF THE ITEM ARE BEING CHANGED
      item:
        type: ENCHANTED_BOOK
        name: '&6Harvest II'
        lore: |-
          &7Harvest in a 3x3 area.
          &7Chance to harvest in a 3x3 area.
      chance: 25
      cooldown: 3
      effects:
        - POTION:FAST_DIGGING:1:60
```

{% endcode %}

Any value that is not present here will be taken from the `config.yml` in the `enchantment-book` section

{% code title="config.yml" overflow="wrap" lineNumbers="true" fullWidth="true" %}

```yaml
enchantment-book:
  # If true, books can be applied to items in anvils.
  anvil-application: false
  # If true, books can be applied to items by dragging and dropping them on the item in an inventory.
  drag-drop-application: true
  item:
    type: ENCHANTED_BOOK
    id: 0
    custom-model-data: 0
    force-glow: false
    # Variables: %enchant%, %enchant-no-color%, %description%, %level-description%, %applies%, %success%, %destroy%, %color%, %max-level%
  name: "%group-color%&l&n%enchant-no-color% %level%"
  lore:
    - "&a%success%% Success Rate"
    - "&c%destroy%% Destroy Rate"
    - "&e%description%"
    - "&7%applies-to% Enchantment"
    - "&7Drag n' drop onto item to enchant"
```

{% endcode %}