Hello. It's me again.

I really like the way Zen Cart works with the "sold out" function. My problem is that I have two different stocking quantities, products_quantity and products_quantity2, each for different quantities available at a different location. Is there a way to have the "sold out" function/information show up based on checking to see if both of those quantities are 0?

Also, if possible, I would like to be able to mark the items like this:

If products_quantity > 0, no marking.
If products_quantity = 0 & products_quantity2 >0, mark it: ***WAREHOUSE ITEM***.
If products_quantity = 0 & products_quantity2 =0, don't allow them to add it to the cart.

Thanks.