@RharkWhen you say "+1" you're not actually writing that in the box, right? It doesn't work like that.
If not, does the box show the quantity of the item when you click on one or does it show "??".
How is the feature supposed to work? It shows a 1 when I select the item in game. After I Alt-Tab, I delete the 1 and enter 2. Nothing happens in game at all. I've tried different variations and nothing seems to work. The only thing it does is capture the value in the trainer. Am I supposed to use a hotkey or something to increase the amount?