Is there a way to add a script on an item's inventory? Reason: Custom item status field is selected for "Ready for Deletion" (inactivates the item). Once inventory hits 0, we inactivate the item. So I need the ability to, as soon as an item inventory is marked as zero, change a field on an item. I could use a map/reduce, but I was curious if there was a way to do it this way first.