I don't know if anyone figured this out or not, but I just remembered it, despite it being the first thing I tried out after APM made this. You can make infinite items in your pouch by creating one item (potion for example) with 0 for an amount, and another (potion) with a value of 2 or more, the higher the value the faster of course. When you go to deposit it into your chest, it'll just deposit new ones while you still hold the same amount in your pouch. The downside is, this stops working as soon as you go on a quest, which it's then fixed and your 0 potion is just turned into an empty slot.
All in all it's practically pointless with this editor, but still it exists. If someone can find a better use for it, that would be neat though.