I have got a usecase which looks like - 

There are three items we manufacture - 

Item_A
Item_B
Item_C

Level-1 (Put Items in Box)
Now here we put them in pack 30qty each that means BOX0001 has all three items total contained qty is 90.

Level-2 (Put Boxes in Pallet)
Now here we put 30 x BOXES (BOX0001, BOX0002, BOX0003....etc) then it becomes 1 Pallet.

We do MTS Mate to Stock and we store in pallets in our warehouses and we sell in qty which are inside the boxes which boxes are inside the pallets.

So, sometimes we sell Boxes (e.g. 4 Boxes of 90qty) like we sell 360qty total 120qty of each (Item_A, Item_B, Item_C) that means unpack option is required and sometimes we sell the pallets aswell. (e.g. 2 Pallets) that means 5400 qty total 1800qty of each item (Item_A, Item_B, Item_C).

Level 1 can be handled in odoo18 but how can I do Level 2 aswell? 
If you have customization approach also in your mind please suggest.

Thanks!