Inept at code, I don't know whether this is feasible, but this be my suggestion.
When purchasing items in the store, one must click on the [$]. Now, when you're after one item alone, that's grand, but when you're looking to purchase 10k rounds of ammunition, it's tedious. I suggest implementing a system wherein one can click on the [$] and have a pop-up to input the quantity one wants. Alternatively, an preset input box by the [$] where one can put the quantity (default can be set to one), and clicking [$] confirms the purchase.
PS: The same could be true for selling stacked items.
When purchasing items in the store, one must click on the [$]. Now, when you're after one item alone, that's grand, but when you're looking to purchase 10k rounds of ammunition, it's tedious. I suggest implementing a system wherein one can click on the [$] and have a pop-up to input the quantity one wants. Alternatively, an preset input box by the [$] where one can put the quantity (default can be set to one), and clicking [$] confirms the purchase.
PS: The same could be true for selling stacked items.