Quote:
1. Stack size (from high to low and vice versa)
2. HQ / NQ
3. Equipment with or without materials (equipment only)
4. Spirit Bound (Only equipment, from high to low and vice versa)
5. Standard order by name of the object
6. Level of the item (only item, from high to low and vice versa)
7. Level of the equipment (only equipment, from high to low and vice versa)
8. Category of items (from high to low and vice versa)
9 Fill the empty spaces or separating the tabs of the inventory by category
It is for inventar, retainers and armory chest.