Setting up a Children's discount on physical inventory, without discounting all items in a purchase.

[MagicToybox]

I would like to create a children's discount, but only have it apply to certain items in a transaction. For instance, I want to have a childrens discount on Boxes. If a family purchases 4 x Boxes and 2x Balls, and has two children that should receive a discount on boxes only, I want to have the pruchase sell 2 boxes at full price, 2 boxes at discount, and 2 balls at full price. 

Is this possible? 

Alternatively, I could have a seperate inventory item that automatically sells the same item at a seperate price, but could I have the Full price item and the Children Price item, pull from the same inventory pool? 

[ChickenRacer]

G'day @MagicToybox, easiest way is an item-level discount rather than a separate item. Ring the boxes up as two separate lines (2 + 2), then tap one line and apply your "Child" discount to just that line. The balls and the other 2 boxes stay full price, and it all comes out of the same stock count.

I'd steer away from a separate "child price" item or variation, as each one tracks its own stock, so your counts end up split. In a pub we'd handle something like a pensioner discount the same way. The per-line discount is the cleanest option.