Can you collect them all?
Added
Changed
pagination:
  previous:
    material: ARROW
    display-name: "<green>Previous Page"
    lore:
      - "<gray>Go to the previous page"
    custom-model-data: 0
    slot: -9  # Relative to GUI size: -9 means 9 slots from the end (first slot of last row)
  next:
    material: ARROW
    display-name: "<green>Next Page"
    lore:
      - "<gray>Go to the next page"
    custom-model-data: 0
    slot: -1  # Relative to GUI size: -1 means last slot of the GUI
  back:
    material: BARRIER
    display-name: "<red>Back to Categories"
    lore:
      - "<gray>Return to the category selector"
    custom-model-data: 0
    slot: -5  # Relative to GUI size: -5 means middle of the last row