Combobox Grid Editor Dynamic

[sysmo]

Hi, I'm trying to use a combo that contains references to each product.
eg
Product: Coke
References: 500ml | 1 lt

Product: Cookie
References: 200 g | 1 kg

I am using an editable combo for each product, but the store is unique.
a chance to dynamically assemble the store in the renderer etitor?

following print ...