Shredder
With this method some items will be splitted as shredder. Selected items will be grouped and remain in parent order and un-selected items will be splitted individually in one order per item.
Inclusive
In this method, selected items for inclusive will be grouped in an order and un-selected items will be grouped in another order and will remain in parent order.
Exclusive
Selected products will be splitted individually and other items will be grouped in one order and those items will remain in parent order.
In Stock / Out Stock
To use this method first turn on menage stock from product edit page and allow back-order. After this the plugin will split items on stock base.
Default
Add any item in the cart. Every item will be splitted separately as mentioned in the screenshot.