If you want the structure to be able to craft, you have to add this Option.

Different from older version, now, the recipe slot layout must be set in this section.

Parameter	Type	Description	Optional
recipe-slots	RecipeSlotLayout.	Define recipe slots of the structure, if you want to make a crafting structure	false
insert	RecipeDecoration	When you insert an item in the structure.	true
place	RecipeDecoration	When you place (right click on a recipe slot) an item in the structure.	true
take	RecipeDecoration	When you take (right click on a recipe slot) an item from the structure.	true
consume	RecipeDecoration	When an ingredient is consumed while crafting	true
result	RecipeDecoration	When the item is prepared	true

example:

structure:
  name: "...."
  #others stuff
  options:
    crafting:
      recipe-slots:
      offsets: #slots are ordered from up (first) to bottom (last)
        - "-3 0.0 0"
        - "-2 0.0 2"
        - "-2 0.0 -2"
        - "2 0.0 -2"
        - "2 0.0 2"
        - "0 0.0 3"
        - "0.0 0.0 -3"
        - "3 0.0 0.0"
      insert:
        sound:
          type: BLOCK_BREWING_STAND_BREW
          volume: 10
          pitch: 1
      place:
        sound:
          type: ENTITY_ITEM_FRAME_PLACE
          volume: 10
          pitch: 3
      take:
        sound:
          type: ENTITY_ITEM_FRAME_REMOVE_ITEM
          volume: 10
          pitch: 3
      consume:
        particle:
          type: FLAME
          particle: SOUL_FIRE_FLAME
          amount: 10
          count: 1
          center-offset: "0 0 0"
          speed: 0
        sound:
          type: ENTITY_BLAZE_SHOOT
          volume: 1
          pitch: 0
      result:
        particle:
          type: FLAME
          particle: SOUL_FIRE_FLAME
          amount: 10
          count: 1
          center-offset: "0.0 0.5 0.0"
          speed: 0.1
        sound:
          type: ENTITY_DRAGON_FIREBALL_EXPLODE
          volume: 10
          pitch: 85