 
                Allow your players to do quests in return for rewards
options:
  ..
  performance-tweaking:
    quests-autosave-async: false          # experimental - save asynchronously on autosave
    quests-join-async: false              # experimental - load asynchronously on join
    quests-leave-async: false             # experimental - save asynchronously on leave 
 
custom-elements:
  "categories": # apply to the categories menu (the main menu by default)
    0:   # <--- slot 1, note the slots start from 0! so 0 = slot 1 in this case
      display:
        name: "&cCustom Boring Item"
        lore:
          - "&7Some interesting description"
        type: "DIAMOND_BLOCK"
    1:
      spacer: true   # empty slot, just like me
      repeat: 2      # repeats for 2 slots